{"id":13030,"date":"2024-08-06T15:56:07","date_gmt":"2024-08-06T07:56:07","guid":{"rendered":"http:\/\/www.elepcb.com\/?p=13030"},"modified":"2025-04-07T15:28:20","modified_gmt":"2025-04-07T07:28:20","slug":"solder-ball-on-pcbs","status":"publish","type":"post","link":"https:\/\/www.elepcb.com\/it\/blog\/solder-ball-on-pcbs\/","title":{"rendered":"Come prevenire i difetti delle sfere di saldatura sui PCB"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"13030\" class=\"elementor elementor-13030\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4b091a4d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4b091a4d\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-12494132\" data-id=\"12494132\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5475a98e elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"5475a98e\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;exclude_headings_by_selector&quot;:[],&quot;headings_by_tags&quot;:[&quot;h2&quot;,&quot;h3&quot;],&quot;no_headings_message&quot;:&quot;No headings were found on this page.&quot;,&quot;marker_view&quot;:&quot;numbers&quot;,&quot;minimize_box&quot;:&quot;yes&quot;,&quot;minimized_on&quot;:&quot;tablet&quot;,&quot;hierarchical_view&quot;:&quot;yes&quot;,&quot;min_height&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"table-of-contents.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__header\">\n\t\t\t\t\t\t<h4 class=\"elementor-toc__header-title\">\n\t\t\t\tTable of Contents\t\t\t<\/h4>\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--expand\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__5475a98e\" aria-expanded=\"true\" aria-label=\"Open table of contents\"><i aria-hidden=\"true\" class=\"fas fa-chevron-down\"><\/i><\/div>\n\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--collapse\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__5475a98e\" aria-expanded=\"true\" aria-label=\"Close table of contents\"><i aria-hidden=\"true\" class=\"fas fa-chevron-up\"><\/i><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<div id=\"elementor-toc__5475a98e\" class=\"elementor-toc__body\">\n\t\t\t<div class=\"elementor-toc__spinner-container\">\n\t\t\t\t<i class=\"elementor-toc__spinner eicon-animation-spin eicon-loading\" aria-hidden=\"true\"><\/i>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5206934 elementor-widget elementor-widget-text-editor\" data-id=\"5206934\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"K5cQdPyqAoIVz9xiCVzcrjK4n2e\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div data-page-id=\"K5cQdPyqAoIVz9xiCVzcrjK4n2e\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div data-page-id=\"ZzVndCoYjoIIzhx50mjcQDcLnue\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div data-page-id=\"SKC7dw5mIo9QKNxSgwPcggXAnRh\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div data-page-id=\"BaAqdv8UmonE8ZxHyouc2xGbn6c\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-Dr1edNdemonXW8xAUfpcwbIBnZf\"><p>Solder balls are a common soldering phenomenon, and they are good or bad depending on the environment and conditions in which they occur. In Ball Grid Array (<a href=\"https:\/\/www.elepcb.com\/blog\/ball-grid-array-guide-to-bga-packages\/\">BGA<\/a>) packages, solder balls are part of the design and are used to realize the electrical and mechanical connection between the chip and the PCB. They are very important and necessary in this case.<\/p><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c523928 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c523928\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e2da2e3\" data-id=\"e2da2e3\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-46e84c2 elementor-widget elementor-widget-spacer\" data-id=\"46e84c2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3adef51 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3adef51\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-413df67\" data-id=\"413df67\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-70b9b62 elementor-widget elementor-widget-image\" data-id=\"70b9b62\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"600\" height=\"312\" src=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2024\/08\/BGA.png\" class=\"attachment-large size-large wp-image-13098\" alt=\"BGA\" srcset=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2024\/08\/BGA.png 600w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2024\/08\/BGA-300x156.png 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e675362 elementor-widget elementor-widget-text-editor\" data-id=\"e675362\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>However, if solder balls appear where they shouldn&#8217;t, such as on the surface of a PCB or between alignments, they will cause<a href=\"https:\/\/www.elepcb.com\/blog\/pcb-short-circuit\/\"> short circuits<\/a> or other electrical problems. If weld balls have formed due to defects in the soldering process, these need to be removed or corrected. If the solder balls are formed due to problems with the metal plating of the hole wall or water vapor emission, this usually needs to be corrected as well.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2521e6e elementor-widget elementor-widget-text-editor\" data-id=\"2521e6e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"GZvndL1LSoGODMx5HiUcWFZjnze\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-DzPxdFVFfozWl9x6EZRc35rbnhb\"><div data-page-id=\"PD53dIDi6oY35UxdCmecqmWgnsc\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-HFyhdBNvPoDZ14xeyc1clLfdnsh\">Today we will mainly discuss those solder balls that should not appear on the PCB. \u00a0They will impact the appearance, performance, and reliability of circuit boards.\u00a0<\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9b98cf8 elementor-widget elementor-widget-text-editor\" data-id=\"9b98cf8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><a href=\"https:\/\/www.elepcb.com\/\">ELEPCB<\/a>, as one of the leading <a href=\"https:\/\/www.elepcb.com\/pcb-manufacturing-process-and-services\/\">PCB manufacturing<\/a> and <a href=\"https:\/\/www.elepcb.com\/pcb-assembly-process-and-services\/\">PCB assembly<\/a> companies in China, can prevent many unwanted problems from arising during the PCB soldering process. Therefore, as a result of our experience, this comprehensive guide will provide electronics manufacturers, designers, and assemblers with a complete understanding of what causes solder balls, how to prevent them, and how to minimize risks during manufacturing.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-069bda6 elementor-widget elementor-widget-heading\" data-id=\"069bda6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><b>What are Solder Balls?<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4d36313 elementor-widget elementor-widget-text-editor\" data-id=\"4d36313\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"PD53dIDi6oY35UxdCmecqmWgnsc\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-I82EdsWoZo4LUIx2YXYckbvznah\"><strong>Solder<\/strong><strong> balls<\/strong> are small, spherical metallic balls that can form on circuit boards, typically around the leads or pads of <a href=\"https:\/\/www.elepcb.com\/smt-pcb-service\/\">surface mount<\/a> components. Ranging from just a few micrometers to a couple of hundred micrometers in diameter, these balls occur due to <a href=\"https:\/\/www.elepcb.com\/blog\/soldering-defects\/\">issues<\/a> in the soldering process. While they may seem insignificant, solder balls can majorly affect <a href=\"https:\/\/www.elepcb.com\/pcb-assembly-process-and-services\/\">PCB assembly<\/a>, functionality, and reliability.<\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-224f89b elementor-widget elementor-widget-image\" data-id=\"224f89b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"640\" height=\"352\" src=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2024\/08\/Preventing-Solder-Ball-Defects-on-PCB-1.png\" class=\"attachment-large size-large wp-image-13033\" alt=\"\" srcset=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2024\/08\/Preventing-Solder-Ball-Defects-on-PCB-1.png 640w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2024\/08\/Preventing-Solder-Ball-Defects-on-PCB-1-300x165.png 300w\" sizes=\"(max-width: 640px) 100vw, 640px\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c167eea elementor-widget elementor-widget-heading\" data-id=\"c167eea\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><b>Characteristics of Solder Balls<\/b><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a805163 elementor-widget elementor-widget-text-editor\" data-id=\"a805163\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"PD53dIDi6oY35UxdCmecqmWgnsc\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-DHm5diQxaoLXglxBnbWcXgbMnPb\">Solder balls have some distinct characteristics:<\/div><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-Nz7WdlY1kohmEhxQ6kqcoknAn0b\" data-list=\"bullet\"><div>They range in size from 10-200 \u03bcm, typically.<\/div><\/li><li class=\"ace-line ace-line old-record-id-J40hdLwHvoHL9cxaiywcigJnnPb\" data-list=\"bullet\"><div>They can appear randomly scattered across a PCB or clustered around specific components.<\/div><\/li><li class=\"ace-line ace-line old-record-id-Ex5adebEeopyXsx1WiScuLKwnwg\" data-list=\"bullet\"><div>The most frequent cause is solder paste problems during <a href=\"https:\/\/www.elepcb.com\/smt-pcb-service\/\">SMT assembly<\/a> and <a href=\"https:\/\/www.elepcb.com\/blog\/pcb-reflow-soldering\/\">reflow<\/a>.<\/div><\/li><li class=\"ace-line ace-line old-record-id-RGmkdCcapozyXbxYZcjc40ronVc\" data-list=\"bullet\"><div>Rework processes can also contribute to solder balling in local regions.<\/div><\/li><li class=\"ace-line ace-line old-record-id-B3sadpkQWovmMdxy1NPcVpRGngs\" data-list=\"bullet\"><div>Both leaded and <a href=\"https:\/\/www.elepcb.com\/tag\/lead-free\/\">lead-free<\/a> solder alloys are prone to solder balling.<\/div><\/li><\/ul><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1d2ae61 elementor-widget elementor-widget-heading\" data-id=\"1d2ae61\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><b>Potential Issues Caused by Solder Balls<\/b><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d82b5fb elementor-widget elementor-widget-text-editor\" data-id=\"d82b5fb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"PD53dIDi6oY35UxdCmecqmWgnsc\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-OLbdd3k4BosMurxacOncUDVDn9f\">Though solder balls seem minor, they can lead to several problems:<\/div><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-WNOvdBE98oyiONxxSxccjPNUn6s\" data-list=\"bullet\"><div><strong>Aesthetic defects: <\/strong>Excess solder balls make PCBs appear dirty and unprofessional. For consumer products, this is unacceptable.<\/div><\/li><li class=\"ace-line ace-line old-record-id-LJ1odfzhioErd9xOzgocxKwunLb\" data-list=\"bullet\"><div><strong>Electrical shorts: <\/strong>Solder balls bridging component leads\/pads cause malfunctions and field failures. They reduce reliability.<\/div><\/li><li class=\"ace-line ace-line old-record-id-AXridgRPgoZ8mGxTq4XcNzG4n7T\" data-list=\"bullet\"><div><strong>Mechanical integrity: <\/strong>Large solder balls falling off impact the stability and strength of solder joints.<\/div><\/li><li class=\"ace-line ace-line old-record-id-JN5NdrCnHofGKBxLI9WcRJH5nEh\" data-list=\"bullet\"><div><strong>Manufacturing defects: <\/strong>Per IPC standards, more than 5 solder balls in 600 mm2 make a PCB defective. Rework is required.<\/div><\/li><li class=\"ace-line ace-line old-record-id-GYCQdmQuto31VZxihBSc70mJnse\" data-list=\"bullet\"><div><strong>Thermal cycling failures: <\/strong>Cracked joints stressed by thermal excursions.<\/div><\/li><li class=\"ace-line ace-line old-record-id-EZejdn2jLoYbjHxlxnpcoiP0nEe\" data-list=\"bullet\"><div><strong>Vibration failures: <\/strong>Mechanically weak solder joints aggravated by vibration.<\/div><\/li><\/ul><div class=\"ace-line ace-line old-record-id-MAVGdDDjcoDSDAxNz5fczDZ5nCf\"><strong>Solder ball<\/strong> removal through manual brushing, air knives, or tweezers can avoid many issues. For optimal <a href=\"https:\/\/www.elepcb.com\/pcb-assembly-process-and-services\/\">PCB assembly<\/a>, solder balls should be minimized through process control.<\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0a81acc elementor-widget elementor-widget-heading\" data-id=\"0a81acc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><b>What Causes Solder Balling?<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-350ebf7 elementor-widget elementor-widget-text-editor\" data-id=\"350ebf7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"PD53dIDi6oY35UxdCmecqmWgnsc\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-K2PDdlj6GohQHLxCHQJcgYvJnnd\">Many factors related to materials, processes, environment, and design can contribute to solder ball formation. Understanding the root causes is the first step toward prevention.<\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-93fc484 elementor-widget elementor-widget-heading\" data-id=\"93fc484\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><b>Materials That Can Lead to Solder Balls<\/b><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-43d8bec elementor-widget elementor-widget-text-editor\" data-id=\"43d8bec\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"GZvndL1LSoGODMx5HiUcWFZjnze\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-NFDFdJIjPo8nQyxMtx4ce8POnXg\"><div data-page-id=\"PD53dIDi6oY35UxdCmecqmWgnsc\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-OP67dJ0RWoAqFHxi7VYcLcv6n8f\">Certain <a href=\"https:\/\/www.elepcb.com\/blog\/pcb-substrate-materials\/\">materials<\/a> used in <a href=\"https:\/\/www.elepcb.com\/pcb-assembly-process-and-services\/\">PCB assembly<\/a> can increase risks of solder balling if not properly managed:<\/div><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-WVHKdRsoiouKPexyss7c00rYnec\" data-list=\"bullet\"><div><strong><a href=\"https:\/\/www.elepcb.com\/blog\/pcb-solder-paste\/\">Solder Paste<\/a>: <\/strong>Insufficient flux activation, oxidation, separation of alloy particles, high moisture absorption<\/div><\/li><li class=\"ace-line ace-line old-record-id-WGAmdWMSjo8uftxL2RDcT4zlnkb\" data-list=\"bullet\"><div><strong><a href=\"https:\/\/www.elepcb.com\/blog\/pcb-solder-mask\/\">Solder Mask<\/a>: <\/strong>Poor adhesion allows the solder to stick during reflow<\/div><\/li><li class=\"ace-line ace-line old-record-id-P4hudeDtOoPXSdx3izqcoR2gnqg\" data-list=\"bullet\"><div><strong>PCB<\/strong><strong>: <\/strong>Excess absorbed moisture if improperly handled and stored<\/div><\/li><li class=\"ace-line ace-line old-record-id-LuiAd6Tr6oIFaixcwbsc2GKdnHf\" data-list=\"bullet\"><div><strong>Stencils: <\/strong>Residue or damage leading to imperfect solder deposition<\/div><\/li><\/ul><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-abe9813 elementor-widget elementor-widget-heading\" data-id=\"abe9813\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><b>Process Factors That Create Solder Balls<\/b><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0243f37 elementor-widget elementor-widget-text-editor\" data-id=\"0243f37\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"PD53dIDi6oY35UxdCmecqmWgnsc\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-CxiSdwPyXoOpAExQdO6cadTwnbc\">Many states in the assembly process can potentially create solder ball defects:<\/div><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-NqKLd39S2oyTSwxGScScnjBTn34\" data-list=\"bullet\"><div><strong>Solder Paste Printing: <\/strong>Misregistration, excess paste, high pressure, stencil issues<\/div><\/li><li class=\"ace-line ace-line old-record-id-JtbTdzObloL283xMac4cJ9vxnKh\" data-list=\"bullet\"><div><strong>Component Placement: <\/strong>Misalignment, downward force expelling paste<\/div><\/li><li class=\"ace-line ace-line old-record-id-Re0YdycV1oUOd0x5zPCclrMWnnf\" data-list=\"bullet\"><div><strong>Reflow: <\/strong>Low preheat temperature, poor <a href=\"https:\/\/www.elepcb.com\/blog\/solder-flux\/\">flux<\/a> activation, rapid moisture evaporation<\/div><\/li><li class=\"ace-line ace-line old-record-id-KRSid1wZ8ozBxwxbbJEcP4RDnHh\" data-list=\"bullet\"><div><strong><a href=\"https:\/\/www.elepcb.com\/blog\/wave-soldering\/\">Wave Soldering<\/a>: <\/strong>High turbulence, flux issues, separation from wave<\/div><\/li><\/ul><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7ac2fb6 elementor-widget elementor-widget-heading\" data-id=\"7ac2fb6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><b>Environmental Causes of Solder Balls<\/b><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-923a34f elementor-widget elementor-widget-text-editor\" data-id=\"923a34f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"GZvndL1LSoGODMx5HiUcWFZjnze\" data-docx-has-block-data=\"false\"><div class=\" old-record-id-DPkQd1C0iomxsuxhgLLcfuETnEg\"><div data-page-id=\"GZvndL1LSoGODMx5HiUcWFZjnze\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-QY6NdlreQoBpKrxz8P6c4y3ZnGg\"><div data-page-id=\"PD53dIDi6oY35UxdCmecqmWgnsc\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-WdtcdR75MowMMaxlhthczXmOnld\">Environmental conditions can also contribute to solder ball risks:<\/div><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-JflidrrmFo63KXxsHsQcycaGnDb\" data-list=\"bullet\"><div>High ambient humidity and moisture<\/div><\/li><li class=\"ace-line ace-line old-record-id-XZqCdRA12oFG1wxqVbOcpdcHnWh\" data-list=\"bullet\"><div>Thermal shocks during assembly and test<\/div><\/li><li class=\"ace-line ace-line old-record-id-F5RsdupV5oAXg0xLhndcL6gdnsc\" data-list=\"bullet\"><div>Contamination from nearby components<\/div><\/li><\/ul><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cdfd9b1 elementor-widget elementor-widget-heading\" data-id=\"cdfd9b1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><b>Design Factors That Lead to Solder Balls<\/b><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1f76ef2 elementor-widget elementor-widget-text-editor\" data-id=\"1f76ef2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"PD53dIDi6oY35UxdCmecqmWgnsc\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-ZyeUdT7T5o8vuWxtkDcc168An1c\">Certain <a href=\"https:\/\/www.elepcb.com\/pcb-layout-design-process-and-guidelines\/\">PCB design<\/a> elements can increase solder ball risks:<\/div><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-USpId0YEsoZeblxjfducfRSonOh\" data-list=\"bullet\"><div>Fine pitch components with inadequate spacing<\/div><\/li><li class=\"ace-line ace-line old-record-id-GB2Jd4dKDoxgQ1xGxhackH74nEc\" data-list=\"bullet\"><div>Insufficient solder mask dams between component pads<\/div><\/li><li class=\"ace-line ace-line old-record-id-WiGGdnq7fogfy5xH3cNc5ycinQe\" data-list=\"bullet\"><div>Minimal pad sizes unable to contain sufficient paste<\/div><\/li><li class=\"ace-line ace-line old-record-id-EUCZdhpxVoqEIXxHg5gc6kWSnpq\" data-list=\"bullet\"><div>High pin count <a href=\"https:\/\/www.elepcb.com\/blog\/ball-grid-array-guide-to-bga-packages\/\">BGA<\/a>s and other complex packages<\/div><\/li><\/ul><div class=\"ace-line ace-line old-record-id-GYO0dsn15oqrF0x7a7Aclb6tnkg\">With numerous solder ball risk factors, prevention requires a systematic focus across materials, process,<a href=\"https:\/\/www.elepcb.com\/blog\/pcb-inspection\/\"> inspection<\/a>, environmental, and design elements.<\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6c27852 elementor-widget elementor-widget-heading\" data-id=\"6c27852\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><b>Impact of Solder Balls on PCBs<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-df3d1e7 elementor-widget elementor-widget-text-editor\" data-id=\"df3d1e7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"PD53dIDi6oY35UxdCmecqmWgnsc\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-RQxQdMShXoahQFxg6cCcJ4pInvg\"><strong>Solder balls<\/strong> may seem insignificant, but can seriously impact <a href=\"https:\/\/www.elepcb.com\/pcb-assembly-process-and-services\/\">PCB assembly<\/a>, functionality, and reliability in several ways:<\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3947ed4 elementor-widget elementor-widget-heading\" data-id=\"3947ed4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><b>Aesthetic Impact<\/b><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6b2bdf0 elementor-widget elementor-widget-text-editor\" data-id=\"6b2bdf0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"PD53dIDi6oY35UxdCmecqmWgnsc\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-GC0qdtROLo8TWKxLhL1cbpf7nWb\">While solder balls don\u2019t directly affect function, excess solder balls scattered across a PCB can create an unprofessional, dirty appearance. For consumer <a href=\"https:\/\/www.elepcb.com\/product\/\">products<\/a>, aesthetics, and visual quality are very important. No customer wants to see small metal balls across their circuit board!<\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-15c1c79 elementor-widget elementor-widget-heading\" data-id=\"15c1c79\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><b>Electrical Impact<\/b><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ee1f751 elementor-widget elementor-widget-text-editor\" data-id=\"ee1f751\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"PD53dIDi6oY35UxdCmecqmWgnsc\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-Vn2AdXK7koRFDMxcrebczRminvh\">The most serious impact of solder ball defects is electrical shorts. Solder balls bridging component pads or lead to <a href=\"https:\/\/www.elepcb.com\/blog\/pcb-short-circuit\/\">short circuits<\/a>. This can cause immediate functional failures or latent field failures over time as joints are stressed by thermal cycling and vibration. By reducing PCB reliability, solder balls directly impact product quality and customer satisfaction.<\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a84bc28 elementor-widget elementor-widget-heading\" data-id=\"a84bc28\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><b>Mechanical Impact<\/b><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-51f0438 elementor-widget elementor-widget-text-editor\" data-id=\"51f0438\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"PD53dIDi6oY35UxdCmecqmWgnsc\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-LEBodq1wxoHgE7xcNurcDl8hnje\">Large solder balls partially attached but at risk of falling off can reduce the mechanical stability and strength of solder joints. Shock, vibration, and temperature swings accelerate the possibility of joint failure over time. The impacts grow over product life.<\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fb4337e elementor-widget elementor-widget-heading\" data-id=\"fb4337e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><b>Manufacturing Yield Loss<\/b><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dc59bb3 elementor-widget elementor-widget-text-editor\" data-id=\"dc59bb3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"PD53dIDi6oY35UxdCmecqmWgnsc\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-K1SxdDFjdocUmkxCXJlcpsxcngh\">Excess solder balls lead to increased rework costs or scrapped boards during assembly. This directly reduces manufacturing yields, necessitating more expensive manual secondary operations. Lower yields undermine profitability.<\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e41e841 elementor-widget elementor-widget-heading\" data-id=\"e41e841\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><b>Field Failure Rates<\/b><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7cddc41 elementor-widget elementor-widget-text-editor\" data-id=\"7cddc41\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"PD53dIDi6oY35UxdCmecqmWgnsc\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-Lv98d5omToSAklxLoDCcALCHnfb\">Any electrical or mechanical failure risks introduced by solder ball defects can emerge after deployment as latent field failures. This increases warranty costs and hurts brand reputation.<\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-13dd828 elementor-widget elementor-widget-text-editor\" data-id=\"13dd828\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"GZvndL1LSoGODMx5HiUcWFZjnze\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-P9ZSdOWSfo5wNFxlwmKc6OW5nff\"><div data-page-id=\"PD53dIDi6oY35UxdCmecqmWgnsc\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-ScVfdZp3MoMVd4xLhdKcygT4n7b\">In summary, solder ball prevention during manufacturing is necessary to minimize risks of post-assembly defects, ensure high reliability, and prevent avoidable manufacturing losses.<\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-71a48a8 elementor-widget elementor-widget-heading\" data-id=\"71a48a8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><b>How to Prevent Solder Balls on PCBs?<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2b4521e elementor-widget elementor-widget-text-editor\" data-id=\"2b4521e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"PD53dIDi6oY35UxdCmecqmWgnsc\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-E9G9dphJ5o742MxwQl4ccxsMnwb\">Many strategic steps across design, <a href=\"https:\/\/www.elepcb.com\/blog\/pcb-substrate-materials\/\">material<\/a> selection, process control, <a href=\"https:\/\/www.elehttps:\/\/www.elepcb.com\/blog\/pcb-inspection\/pcb.com\/blog\/pcb-inspection\/\">inspection<\/a>, and post-assembly processing can help avoid solder ball risks:<\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4fa89db elementor-widget elementor-widget-heading\" data-id=\"4fa89db\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><b>Design Considerations to Avoid Solder Balls<\/b><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-52b2d1c elementor-widget elementor-widget-text-editor\" data-id=\"52b2d1c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"GZvndL1LSoGODMx5HiUcWFZjnze\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-DT4TdnVZmoE3OGxQLdrc7eyMn0e\"><div data-page-id=\"PD53dIDi6oY35UxdCmecqmWgnsc\" data-docx-has-block-data=\"false\"><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-H78zdeok1o5makxjylUcLsuSnc6\" data-list=\"bullet\"><div>Sufficient pad spacing and <a href=\"https:\/\/www.elepcb.com\/blog\/pcb-solder-mask\/\">solder mask<\/a> dams between adjacent component pads.<\/div><\/li><li class=\"ace-line ace-line old-record-id-XVyad7ZaPo8kpcx85Fec1pnWnze\" data-list=\"bullet\"><div>Avoiding extremely fine-pitch components when possible.<\/div><\/li><li class=\"ace-line ace-line old-record-id-FMGmd4uu3ojHPfx2JJncQ7dLnEd\" data-list=\"bullet\"><div>Pad and stencil aperture sizing to minimize paste deposition volume.<\/div><\/li><li class=\"ace-line ace-line old-record-id-LLRwdUVOMouawlxArWJcrtFPnJf\" data-list=\"bullet\"><div>Easy-to-activate, low residue fluxes that are fully volatile.<\/div><\/li><\/ul><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c7e9412 elementor-widget elementor-widget-heading\" data-id=\"c7e9412\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><b>Material Selection to Prevent Solder Balling<\/b><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-02e2d23 elementor-widget elementor-widget-text-editor\" data-id=\"02e2d23\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"GZvndL1LSoGODMx5HiUcWFZjnze\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-OPGmd5R9BooBFCxiNEQcT8Q9n09\"><div data-page-id=\"PD53dIDi6oY35UxdCmecqmWgnsc\" data-docx-has-block-data=\"false\"><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-ZUEXdwQWdojnTVxXPiJcTSsWnzd\" data-list=\"bullet\"><div>High-quality <a href=\"https:\/\/www.elepcb.com\/blog\/pcb-solder-paste\/\">solder paste<\/a> matched to the PCB\u2019s reflow profile.<\/div><\/li><li class=\"ace-line ace-line old-record-id-UU8idYYCioknUjxgH0wcc1ZYncL\" data-list=\"bullet\"><div>Lower contamination paste to avoid sputtering.<\/div><\/li><li class=\"ace-line ace-line old-record-id-W1J7daoROolXe7x6n1QcjEZ6ndh\" data-list=\"bullet\"><div>PCBs are baked to remove any absorbed moisture.<\/div><\/li><li class=\"ace-line ace-line old-record-id-UdDWdslMzo84Gexwbv7caAqpnPb\" data-list=\"bullet\"><div>Undamaged stencils with proper aperture opening accuracy.<\/div><\/li><li class=\"ace-line ace-line old-record-id-EgJMdL1P8o0HELx6eClcFUSRnEi\" data-list=\"bullet\"><div>Higher temperature solder alloy if suitable for the product.<\/div><\/li><\/ul><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-66584c2 elementor-widget elementor-widget-heading\" data-id=\"66584c2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\"><b>Process Control and Optimization<\/b><\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0484d97 elementor-widget elementor-widget-text-editor\" data-id=\"0484d97\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"GZvndL1LSoGODMx5HiUcWFZjnze\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-PlBSdoSpQofip3xgh1QcI22mnSc\"><div data-page-id=\"PD53dIDi6oY35UxdCmecqmWgnsc\" data-docx-has-block-data=\"false\"><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-LdcHdimWKovINMxxztGcgUOWn0g\" data-list=\"bullet\"><div>Appropriate stencil cleaning regimen and <a href=\"https:\/\/www.elepcb.com\/blog\/pcb-inspection\/\">inspection<\/a>.<\/div><\/li><li class=\"ace-line ace-line old-record-id-QA15dNFbuo9DsLx0Y0fcv02ZnVe\" data-list=\"bullet\"><div>Monitoring paste print quality and pressure.<\/div><\/li><li class=\"ace-line ace-line old-record-id-TCLedvxsuoBLl4xTLwhcpmvwnNd\" data-list=\"bullet\"><div>Maintaining pick and place accuracy.<\/div><\/li><li class=\"ace-line ace-line old-record-id-JdxbdpQ98onHBzxNrhXct0aKnod\" data-list=\"bullet\"><div>Sufficient preheat ramps and soak times.<\/div><\/li><li class=\"ace-line ace-line old-record-id-VcCrdUyIJo0YltxdFtCc9ZMGnDe\" data-list=\"bullet\"><div>Lower wave turbulence through optimized <a href=\"https:\/\/www.elepcb.com\/blog\/solder-flux\/\">flux<\/a>.<\/div><\/li><\/ul><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fe66cfe elementor-widget elementor-widget-heading\" data-id=\"fe66cfe\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\"><b>Inspection and Testing<\/b><\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c210b72 elementor-widget elementor-widget-text-editor\" data-id=\"c210b72\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"PD53dIDi6oY35UxdCmecqmWgnsc\" data-docx-has-block-data=\"false\"><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-FsjodBe0Uo8hWfxEBkjczqwgnjC\" data-list=\"bullet\"><div>Automated optical inspection to identify issues.<\/div><\/li><li class=\"ace-line ace-line old-record-id-OeOTdYvuToZDdtx9bgfchzETnmh\" data-list=\"bullet\"><div>Cross-sectioning and <a href=\"https:\/\/www.elepcb.com\/blog\/pcb-x-ray-inspection\/\">X-ray<\/a> to diagnose the root cause.<\/div><\/li><li class=\"ace-line ace-line old-record-id-UYg3dMQu2ogObDxf7UWczDSTnJd\" data-list=\"bullet\"><div>Solder ball counting tools during assembly.<\/div><\/li><li class=\"ace-line ace-line old-record-id-THtQdeoMMo8buExDKXtcx3gYnkc\" data-list=\"bullet\"><div>Thermal shock, vibration, drop, and torque testing.<\/div><\/li><\/ul><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cf7c01e elementor-widget elementor-widget-heading\" data-id=\"cf7c01e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\"><b>Rework and Touch Up<\/b><\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-10edf4d elementor-widget elementor-widget-text-editor\" data-id=\"10edf4d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"PD53dIDi6oY35UxdCmecqmWgnsc\" data-docx-has-block-data=\"false\"><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-D16Wd5cHSoDlttxgRtIcPYginwb\" data-list=\"bullet\"><div>Manual solder ball removal through brushing or tweezers.<\/div><\/li><li class=\"ace-line ace-line old-record-id-GMCMdsHLoosAoCxYkbJccXtRn7e\" data-list=\"bullet\"><div><a href=\"https:\/\/www.elepcb.com\/blog\/choose-the-right-pcb-conformal-coating\/\">Conformal coating<\/a> to immobilize any remaining balls.<\/div><\/li><li class=\"ace-line ace-line old-record-id-F29TdrAJLoVUTtxU0qwcFVYxnRd\" data-list=\"bullet\"><div>Localized touch-up after failure diagnosis.<\/div><\/li><li class=\"ace-line ace-line old-record-id-Tyc8dvmR9oFeMYx1F6Hc8k6Dn7e\" data-list=\"bullet\"><div>Board washing after any rework.<\/div><\/li><\/ul><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-05c1ce4 elementor-widget elementor-widget-heading\" data-id=\"05c1ce4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><b>Conclusion<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ff2b90a elementor-widget elementor-widget-text-editor\" data-id=\"ff2b90a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"PD53dIDi6oY35UxdCmecqmWgnsc\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-Ws1hdFyDsoN8Dgxz5DDcKA92nQh\">Preventing <strong>solder balls<\/strong> requires focus across the entire production ecosystem &#8211; from design to manufacturing and testing. By understanding root causes and implementing the strategies outlined here, PCB assemblers and manufacturers can minimize risks, reduce escapes, improve quality, and lower costs. While no process can eliminate solder balls, the combination of data-driven process control, inspection, and purposeful design can substantially reduce occurrences. Companies able to reliably mitigate solder ball defects will gain a competitive advantage in quality, cost, and customer satisfaction.<\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-65f840d elementor-widget elementor-widget-heading\" data-id=\"65f840d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><b>FAQs<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5afe6a88 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5afe6a88\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3e77bb1d\" data-id=\"3e77bb1d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b9af4b elementor-widget elementor-widget-toggle\" data-id=\"b9af4b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"toggle.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-toggle\">\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1211\" class=\"elementor-tab-title\" data-tab=\"1\" role=\"button\" aria-controls=\"elementor-tab-content-1211\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">Q1: Why do solder balls mainly occur during reflow soldering?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-1211\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"region\" aria-labelledby=\"elementor-tab-title-1211\"><div data-page-id=\"K5cQdPyqAoIVz9xiCVzcrjK4n2e\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div><div data-page-id=\"PzvadCyLxoGC6axfsi0cBB2BnWf\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div>A1:\u00a0<\/div><div>High heat causes flux volatilization and moisture evaporation from solder paste, leading to sputtering. Reflow also dislodges improperly deposited paste.<\/div><\/div><\/div><\/div><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1212\" class=\"elementor-tab-title\" data-tab=\"2\" role=\"button\" aria-controls=\"elementor-tab-content-1212\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">Q2: How can you remove solder balls from a PCB?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-1212\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"2\" role=\"region\" aria-labelledby=\"elementor-tab-title-1212\"><div data-page-id=\"K5cQdPyqAoIVz9xiCVzcrjK4n2e\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div data-page-id=\"PzvadCyLxoGC6axfsi0cBB2BnWf\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div>A2:\u00a0<\/div><div>Methods like manual brushing, air knives, and tweezers can remove accessible solder balls. For trapped balls, localized rework or conformal coating may be required.<\/div><\/div><\/div><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1213\" class=\"elementor-tab-title\" data-tab=\"3\" role=\"button\" aria-controls=\"elementor-tab-content-1213\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">Q3: Do solder balls only affect surface mount components?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-1213\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"3\" role=\"region\" aria-labelledby=\"elementor-tab-title-1213\"><div data-page-id=\"K5cQdPyqAoIVz9xiCVzcrjK4n2e\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div data-page-id=\"PzvadCyLxoGC6axfsi0cBB2BnWf\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div>A3:\u00a0<\/div><div>No, through-hole components are also prone as solder can squeeze out from pads, though SMT is most susceptible.<\/div><\/div><\/div><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1214\" class=\"elementor-tab-title\" data-tab=\"4\" role=\"button\" aria-controls=\"elementor-tab-content-1214\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">Q4: Can extra flux prevent solder balls?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-1214\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"4\" role=\"region\" aria-labelledby=\"elementor-tab-title-1214\"><div data-page-id=\"K5cQdPyqAoIVz9xiCVzcrjK4n2e\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div data-page-id=\"PzvadCyLxoGC6axfsi0cBB2BnWf\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div>A4:\u00a0<\/div><div>No, too much flux can worsen solder ball risks by increasing paste contamination and moisture absorption. Proper flux levels are essential.<\/div><\/div><\/div><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1215\" class=\"elementor-tab-title\" data-tab=\"5\" role=\"button\" aria-controls=\"elementor-tab-content-1215\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">Q5: How does solder alloy composition affect solder balling?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-1215\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"5\" role=\"region\" aria-labelledby=\"elementor-tab-title-1215\"><div data-page-id=\"K5cQdPyqAoIVz9xiCVzcrjK4n2e\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div data-page-id=\"PzvadCyLxoGC6axfsi0cBB2BnWf\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div>A5:\u00a0<\/div><div>High lead alloys are more prone to solder balling versus lead-free options, due to higher surface tension and viscosity.<\/div><\/div><\/div><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f9f8886 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f9f8886\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div 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srcset=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2023\/03\/white-bg-2-768x1024.jpg 768w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2023\/03\/white-bg-2-225x300.jpg 225w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2023\/03\/white-bg-2-1152x1536.jpg 1152w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2023\/03\/white-bg-2-1536x2048.jpg 1536w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2023\/03\/white-bg-2-scaled.jpg 1920w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-8968fc1\" data-id=\"8968fc1\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c0c3b5d elementor-widget elementor-widget-image\" 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srcset=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2023\/03\/white-bg-1-768x1024.jpg 768w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2023\/03\/white-bg-1-225x300.jpg 225w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2023\/03\/white-bg-1-1152x1536.jpg 1152w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2023\/03\/white-bg-1-1536x2048.jpg 1536w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2023\/03\/white-bg-1-scaled.jpg 1921w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3dd32bd7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3dd32bd7\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container 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production, increasing speed to market by 20%.<\/p><p>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Contact us below to start discussing your project with our Technical Experts today.<\/p><p>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Whether you already have Gerber Files, submit a\u00a0Quick Quote\u00a0for free estimate.<\/p><\/div><\/form><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5782c747 elementor-button-align-center elementor-widget elementor-widget-form\" data-id=\"5782c747\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;step_next_label&quot;:&quot;Next&quot;,&quot;step_previous_label&quot;:&quot;Previous&quot;,&quot;button_width&quot;:&quot;100&quot;,&quot;step_type&quot;:&quot;number_text&quot;,&quot;step_icon_shape&quot;:&quot;circle&quot;}\" data-widget_type=\"form.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<form class=\"elementor-form\" method=\"post\" name=\"New Form\" aria-label=\"New Form\">\n\t\t\t<input type=\"hidden\" name=\"post_id\" value=\"2056\"\/>\n\t\t\t<input type=\"hidden\" name=\"form_id\" value=\"5782c747\"\/>\n\t\t\t<input type=\"hidden\" name=\"referer_title\" value=\"An Ultimate Guide to PCB Inspection Methods-ELE PCB\" \/>\n\n\t\t\t\t\t\t\t<input type=\"hidden\" name=\"queried_id\" value=\"4187\"\/>\n\t\t\t\n\t\t\t<div class=\"elementor-form-fields-wrapper elementor-labels-above\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-text elementor-field-group elementor-column elementor-field-group-name elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-name\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tYour Name\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"text\" name=\"form_fields[name]\" id=\"form-field-name\" class=\"elementor-field elementor-size-sm  elementor-field-textual\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-email elementor-field-group elementor-column elementor-field-group-message elementor-col-50\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-message\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tEmail Address\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"email\" name=\"form_fields[message]\" id=\"form-field-message\" class=\"elementor-field elementor-size-sm  elementor-field-textual\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-tel elementor-field-group elementor-column elementor-field-group-field_373bda7 elementor-col-50\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-field_373bda7\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tPhone Number\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t<input size=\"1\" type=\"tel\" name=\"form_fields[field_373bda7]\" id=\"form-field-field_373bda7\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" pattern=\"[0-9()#&amp;+*-=.]+\" title=\"Csak a sz\u00e1mok \u00e9s telefonkarakterek (#, -, * stb.) fogadhat\u00f3k el.\">\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-checkbox elementor-field-group elementor-column elementor-field-group-field_c168eb1 elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-field_c168eb1\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tI am interested in (select all that apply)\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t<div class=\"elementor-field-subgroup  elementor-subgroup-inline\"><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Rigid PCBs\" id=\"form-field-field_c168eb1-0\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-0\">Rigid PCBs<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Flexible Printed Circuit Boards\" id=\"form-field-field_c168eb1-1\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-1\">Flexible Printed Circuit Boards<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Flexible Aluminum PCBs\" id=\"form-field-field_c168eb1-2\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-2\">Flexible Aluminum PCBs<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Flexible PCB Microcircuits\" id=\"form-field-field_c168eb1-3\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-3\">Flexible PCB Microcircuits<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Ultra-Thin Flexible PCBs\" id=\"form-field-field_c168eb1-4\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-4\">Ultra-Thin Flexible PCBs<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Rigid-Flex\" id=\"form-field-field_c168eb1-5\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-5\">Rigid-Flex<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Ceramic Printed Circuit Boards\" id=\"form-field-field_c168eb1-6\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-6\">Ceramic Printed Circuit Boards<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Aluminum Printed Circuit Boards\" id=\"form-field-field_c168eb1-7\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-7\">Aluminum Printed Circuit Boards<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Copper Core\" id=\"form-field-field_c168eb1-8\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-8\">Copper Core<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"IC Substrates &amp; Interposer\" id=\"form-field-field_c168eb1-9\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-9\">IC Substrates & Interposer<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"High TG PCBs\" id=\"form-field-field_c168eb1-10\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-10\">High TG PCBs<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Heavy Copper\" id=\"form-field-field_c168eb1-11\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-11\">Heavy Copper<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"PCB Assembly\" id=\"form-field-field_c168eb1-12\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-12\">PCB Assembly<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Components Sourcing\" id=\"form-field-field_c168eb1-13\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-13\">Components Sourcing<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Other\" id=\"form-field-field_c168eb1-14\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-14\">Other<\/label><\/span><\/div>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-upload elementor-field-group elementor-column elementor-field-group-field_2cea676 elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-field_2cea676\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tUpload Your Files (Optional)\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t<input type=\"file\" name=\"form_fields[field_2cea676]\" id=\"form-field-field_2cea676\" class=\"elementor-field elementor-size-sm  elementor-upload-field\">\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-textarea elementor-field-group elementor-column elementor-field-group-field_9ceb2c8 elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-field_9ceb2c8\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tMessage\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t<textarea class=\"elementor-field-textual elementor-field  elementor-size-sm\" name=\"form_fields[field_9ceb2c8]\" id=\"form-field-field_9ceb2c8\" rows=\"4\"><\/textarea>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-group elementor-column elementor-field-type-submit elementor-col-100 e-form__buttons\">\n\t\t\t\t\t<button class=\"elementor-button elementor-size-sm\" type=\"submit\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Submit<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/button>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/form>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-123957a9\" data-id=\"123957a9\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Table of Contents Solder balls are a common soldering phenomenon, and they are good or bad depending on the environment and conditions in which they occur. In Ball Grid Array (BGA) packages, solder balls are part of the design and are used to realize the electrical and mechanical connection between the chip and the PCB. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":13034,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[44],"tags":[129],"class_list":["post-13030","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-pcb-manufacturing"],"_links":{"self":[{"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/posts\/13030","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/comments?post=13030"}],"version-history":[{"count":70,"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/posts\/13030\/revisions"}],"predecessor-version":[{"id":19429,"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/posts\/13030\/revisions\/19429"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/media\/13034"}],"wp:attachment":[{"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/media?parent=13030"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/categories?post=13030"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/tags?post=13030"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}