{"id":7103,"date":"2024-02-21T15:40:34","date_gmt":"2024-02-21T15:40:34","guid":{"rendered":"http:\/\/www.elepcb.com\/?p=7103"},"modified":"2025-03-12T11:22:54","modified_gmt":"2025-03-12T03:22:54","slug":"avi-inspection-system","status":"publish","type":"post","link":"https:\/\/www.elepcb.com\/hu\/blog\/avi-inspection-system\/","title":{"rendered":"AVI ellen\u0151rz\u0151 rendszer"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"7103\" class=\"elementor elementor-7103\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2c9472bc elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2c9472bc\" 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-7bf31d0d\" data-id=\"7bf31d0d\" 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-3f6ffff8 elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"3f6ffff8\" 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__3f6ffff8\" 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__3f6ffff8\" 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__3f6ffff8\" 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\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-94c0f47 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"94c0f47\" 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-739c2b6\" data-id=\"739c2b6\" 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-e399d48 elementor-widget elementor-widget-spacer\" data-id=\"e399d48\" 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-ce3d51b elementor-widget elementor-widget-heading\" data-id=\"ce3d51b\" 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 is PCB Automated Visual Inspection (AVI)?<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cde26d4 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"cde26d4\" 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><span style=\"font-weight: 400;\">PCB automated visual inspection is used in PCB manufacturing to examine the circuit board using a computerized system. The system includes various lighting systems, cameras, and computer algorithms.\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">The process has replaced\u00a0<\/span><a href=\"https:\/\/www.elepcb.com\/pcb-wiki\/manual-inspection\/\" target=\"_blank\" rel=\"noopener\">manual inspection<\/a><span style=\"font-weight: 400;\">\u00a0and involves the image capture of PCB. The system analyzed the captured image for defects such as component misplacement, soldering defects, and surface imperfections. It ensures defect-free PCBs for the final shipping process.\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">It is a final step before shipping the <a href=\"https:\/\/www.elepcb.com\/pcb-assembly-process-and-services\/\" data-wpil-monitor-id=\"414\">PCB to assemblers<\/a>. The scanner of the AVI inspection system will identify any circuit board that doesn&#8217;t align with the requirement guidelines of PCB manufacturers. This will help to increase the <a href=\"https:\/\/www.elepcb.com\/pcb-quality-control\/\">quality of PCB<\/a>. The AVI inspection process is faster and provides a more accurate vision inspection.\u00a0<\/span><\/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-5d685ad elementor-widget elementor-widget-heading\" data-id=\"5d685ad\" 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>Benefits of Automated Visual Inspection<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8c2907a elementor-widget elementor-widget-text-editor\" data-id=\"8c2907a\" 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><span style=\"font-weight: 400;\">AVI inspection systems offer various benefits. Some of them are explained below:<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">AVI inspection system uses advanced imaging technology and an algorithm that detects defects with high accuracy and precision.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It provided faster inspection time than a <a href=\"https:\/\/www.elepcb.com\/blog\/what-is-pcb-manual-inspection\/\"  data-wpil-monitor-id=\"415\">manual<\/a> inspection system. This leads to increased <a href=\"https:\/\/www.elepcb.com\/product\/\"  data-wpil-monitor-id=\"416\">production<\/a> efficiency and throughput.\u00a0<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It can be programmed to inspect a large range of components and products. This makes the AVI system suitable for a wide range of <a href=\"https:\/\/www.elepcb.com\/applications\/\"  data-wpil-monitor-id=\"417\">applications<\/a>.\u00a0<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">AVI inspection system collects and analyzes a large amount of inspection data. It provides valuable insight into production processes and areas for improvement.\u00a0<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It reduces the need for manual handling of the components, enhancing workplace safety.\u00a0<\/span><\/li><\/ul>\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-37a057b elementor-widget elementor-widget-heading\" data-id=\"37a057b\" 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 does the AVI Inspection System Work?<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f396ae3 elementor-widget elementor-widget-image\" data-id=\"f396ae3\" 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=\"768\" height=\"529\" src=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2024\/02\/Wokring-of-AVI-Inspection-System-768x529.png\" class=\"attachment-medium_large size-medium_large wp-image-7110\" alt=\"Working of AVI Inspection System\" srcset=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2024\/02\/Wokring-of-AVI-Inspection-System-768x529.png 768w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2024\/02\/Wokring-of-AVI-Inspection-System-300x207.png 300w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2024\/02\/Wokring-of-AVI-Inspection-System.png 908w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\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-b8c272e elementor-widget elementor-widget-text-editor\" data-id=\"b8c272e\" 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><b>Motion System:<\/b><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Manual Type:<\/b><span style=\"font-weight: 400;\"> Simple setup with inspection table and servo motors for x- and y-axis movement.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Auto Type:<\/b><span style=\"font-weight: 400;\"> More complex setup with components such as loader, cleaning unit, flipping unit, unloader, sorter, and board handling unit.<\/span><\/li><\/ul><p><b>Lighting System:<\/b><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Various light sources are used, including LED, halogen lamps, and fluorescent lamps.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Different machines use different <a href=\"https:\/\/www.elepcb.com\/pcb-wiki\/pcb-color\/\">color<\/a> lights based on requirements.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><a href=\"https:\/\/www.elepcb.com\/pcb-wiki\/aoi-inspection\/\" target=\"_blank\" rel=\"noopener\">AOI inspection<\/a>\u00a0machines often use infrared light for better distinction between copper and substrate, while AVI inspection machines use white light to capture accurate colors.<\/span><\/li><\/ul><p><b>Camera System:<\/b><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Formed by cameras and lenses, with color and monochrome options.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Monochrome cameras are sufficient for AOI machines, while color cameras are more common in AVI inspection machines for cosmetic inspection.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pixel size is crucial, calculated by scan width divided by the number of pixels.<\/span><\/li><\/ul><p><b>Computer System:<\/b><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Receives image data from cameras for processing.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Requires fast processors and large memory for efficient processing.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Often runs on Microsoft Windows or Linux operating systems to prevent virus issues.<\/span><\/li><\/ul><h3><b>Software Components AVI Inspection System<\/b><\/h3><p><b>Software:<\/b><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Provides a graphical interface for users to operate and performs internal calculations to identify defects.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Utilizes different methods for defect detection, such as pixel-by-pixel comparison or logical methods involving contour comparison and design-based inspection.<\/span><\/li><\/ul><h3><b>Additional Components:<\/b><\/h3><p><b>Process Method of the Image:<\/b><\/p><ul><li style=\"list-style-type: none;\"><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Influences processing time; some machines use pixel-by-pixel comparison for faster processing, while others employ logical methods for more detailed defect detection.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It may require faster and more computers for complex processing methods.<\/span><\/li><\/ul><\/li><\/ul>\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-6e2e1c4 elementor-widget elementor-widget-heading\" data-id=\"6e2e1c4\" 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 are Defects <\/b><br><b>Found in the AVI Inspection System?<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-af1b77e elementor-widget elementor-widget-text-editor\" data-id=\"af1b77e\" 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<h3><b>Method 1<\/b><\/h3><p><b><\/b><span style=\"font-weight: 400;\">In the AVI inspection system, the ability to identify defects depends on two main factors: the size and brightness\/color of the defects.<\/span><\/p><p><b>Size of Defects<\/b><span style=\"font-weight: 400;\">: The pixel size of AVI machines determines the minimum size of defects they can detect. Think of pixel size as the basic unit of the scanned image. So, the smallest defect detectable must be larger or equal to the pixel size. However, even if a defect is the same size as a pixel, it might still be difficult to detect.\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">For instance, it&#8217;s easier to detect if the defect falls inside a pixel (Case A). But if the defect spans multiple pixels (Case B), each pixel may only capture a portion of it, making detection challenging.<\/span><\/p><p><b>Brightness\/Color of Defects<\/b><span style=\"font-weight: 400;\">: If the brightness or color of defects closely resembles that of the normal area, it becomes difficult for the machine to detect them. Common defects missed by AVI include scratches and dents.<\/span><\/p><p><b>Lighting<\/b><span style=\"font-weight: 400;\">: AVI machines use both specular and diffuse light. Specular light reflects off surfaces like a mirror, while diffuse light scatters in many directions. A dent&#8217;s uneven surface reflects less specular light but still reflects some diffuse light.<\/span><\/p><p><b>Effect of Lighting on Detection<\/b><span style=\"font-weight: 400;\">: If the diffuse light reflected by a dent is intense, it may appear similar in brightness to the surrounding flat surface, making detection difficult. Conversely, reducing diffuse light intensity may lead to false detections, such as mistaking oxidation or dust for defects.<\/span><\/p><p><b>Motion System<\/b><span style=\"font-weight: 400;\">: In AVI, the board being inspected typically remains stationary. Universal machines share similar motion system components with AVI machines and can adapt to either system with minor modifications.<\/span><\/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-e40f763 elementor-widget elementor-widget-image\" data-id=\"e40f763\" 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=\"800\" height=\"297\" src=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2024\/02\/Detect-Detection-1024x380.png\" class=\"attachment-large size-large wp-image-7109\" alt=\"AVI Inspection Detect Detection\" srcset=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2024\/02\/Detect-Detection-1024x380.png 1024w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2024\/02\/Detect-Detection-300x111.png 300w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2024\/02\/Detect-Detection-768x285.png 768w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2024\/02\/Detect-Detection.png 1272w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\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-bcafa8a elementor-widget elementor-widget-heading\" data-id=\"bcafa8a\" 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>Method 2<\/b><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b00d176 elementor-widget elementor-widget-text-editor\" data-id=\"b00d176\" 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><span style=\"font-weight: 400;\">In AVI inspection machines, having a reference image is crucial for identifying defects on the boards.<\/span><\/p><p><b style=\"background-color: transparent;\">Types of Reference Images<\/b><span style=\"background-color: transparent;\">:<\/span><\/p><ul><li><b>CAD Data<\/b><span style=\"font-weight: 400;\">: This is a computer-aided design representation of PCBs, containing detailed information like circuit layout and\u00a0<a href=\"https:\/\/www.elepcb.com\/pcb-wiki\/solder-mask\/\" target=\"_blank\" rel=\"noopener\">solder mask<\/a>\u00a0layout. CAD data are created using specialized software, and all regions on the PCB are classified.<\/span><\/li><\/ul>\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-93e3f9e elementor-widget elementor-widget-image\" data-id=\"93e3f9e\" 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=\"563\" height=\"536\" src=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2024\/02\/CAD-Data.png\" class=\"attachment-large size-large wp-image-7107\" alt=\"CAD Image\" srcset=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2024\/02\/CAD-Data.png 563w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2024\/02\/CAD-Data-300x286.png 300w\" sizes=\"(max-width: 563px) 100vw, 563px\" \/>\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-f4c273a elementor-widget elementor-widget-text-editor\" data-id=\"f4c273a\" 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<ul><li><b>Golden Board Image<\/b><span style=\"font-weight: 400;\">: This is an image of a flawless board. To ensure its quality, it&#8217;s typically manually inspected first using magnifying devices. Then, it&#8217;s scanned by AOI\/AVI machines to create the golden board image. Sometimes, the golden board image is formed by scanning multiple boards and averaging their images.<\/span><\/li><\/ul>\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-6a69d76 elementor-widget elementor-widget-text-editor\" data-id=\"6a69d76\" 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><b>Role of Reference Images<\/b><span style=\"font-weight: 400;\">:<\/span><\/p><ul><li style=\"list-style-type: none;\"><ul><li style=\"font-weight: 400;\" aria-level=\"2\"><b>CAD Data<\/b><span style=\"font-weight: 400;\">: If CAD data is used as the reference image, it&#8217;s already classified. However, the scanned image needs classification before comparison. This process involves categorizing regions in the scanned image.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"2\"><b>Golden Board Image<\/b><span style=\"font-weight: 400;\">: If the reference image is a golden board image, neither the scanned image nor the golden board image is classified. Hence, the scanned image can be directly compared with the golden board image to detect differences.<\/span><\/li><\/ul><\/li><\/ul><p><b>Classification and Comparison<\/b><span style=\"font-weight: 400;\">:<\/span><\/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-ebdb282 elementor-widget elementor-widget-image\" data-id=\"ebdb282\" 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 loading=\"lazy\" decoding=\"async\" width=\"696\" height=\"468\" src=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2024\/02\/Classified-Image-of-AVI-Image.png\" class=\"attachment-large size-large wp-image-7108\" alt=\"Classified Image of AVI Image\" srcset=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2024\/02\/Classified-Image-of-AVI-Image.png 696w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2024\/02\/Classified-Image-of-AVI-Image-300x202.png 300w\" sizes=\"(max-width: 696px) 100vw, 696px\" \/>\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-dfa24f6 elementor-widget elementor-widget-text-editor\" data-id=\"dfa24f6\" 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<ul><li style=\"font-weight: 400;\" aria-level=\"2\"><b>With CAD Data<\/b><span style=\"font-weight: 400;\">: The process involves classifying the scanned image, comparing it with the classified CAD data, and analyzing the differences to identify defects.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"2\"><b>With Golden Board Image<\/b><span style=\"font-weight: 400;\">: Here, both the scanned image and the golden board image are unclassified. Thus, a direct comparison is made to detect differences, and the golden board image may be classified for further analysis based on the identified differences.<\/span><\/li><\/ul>\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-aa7672a elementor-widget elementor-widget-text-editor\" data-id=\"aa7672a\" 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<h2><b>What are the types of Defects AVI Can Detect<\/b><\/h2><p><span style=\"font-weight: 400;\">Detecting defects in Automated Visual Inspection is crucial for ensuring the quality of PCBs. The ability of AVI systems to identify defects relies on several factors, such as the size and brightness\/color of the defects and the performance of the lighting and camera systems.<\/span><\/p><p><span style=\"font-weight: 400;\">AVI inspection systems are capable of detecting a wide range of defects, including:<\/span><\/p><ol><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Missing components: AVI inspection can identify instances where components are missing from the PCB, which could lead to functionality issues or electrical failures.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Soldering defects: AVI inspection systems can detect problems with solder joints, such as insufficient solder, solder bridges, or cold solder joints, which may impact the reliability of the PCB.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Component misalignment: AVI is adept at identifying instances where <a href=\"https:\/\/www.elepcb.com\/pcb-wiki\/pcb-component-placement\/\">components are not properly aligned on the PCB<\/a>, which could affect the functionality or performance of the electronic device.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">PCB contamination: AVI systems can spot contaminants on the <a href=\"https:\/\/www.elepcb.com\/pcb-wiki\/surface-finish\/\">surface of the PCB<\/a>, such as dust, debris, or foreign substances, which may compromise the integrity of the circuitry.<\/span><\/li><\/ol>\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-cd87f4f elementor-widget elementor-widget-text-editor\" data-id=\"cd87f4f\" 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<h2><b>Difference Between AOI and AVI<\/b><\/h2><table><tbody><tr><td><p><span style=\"font-weight: 400;\">AOI (Automated Optical Inspection)<\/span><\/p><\/td><td><p><span style=\"font-weight: 400;\">AVI (Automated Visual Inspection)<\/span><\/p><\/td><\/tr><tr><td><p><span style=\"font-weight: 400;\">Uses optical technology to inspect PCBs.<\/span><\/p><\/td><td><p><span style=\"font-weight: 400;\">Utilizes cameras and image analysis algorithms.<\/span><\/p><\/td><\/tr><tr><td><p><span style=\"font-weight: 400;\">Is an inspection process during production line<\/span><\/p><\/td><td><p><span style=\"font-weight: 400;\">Is the last inspection before shipping<\/span><\/p><\/td><\/tr><tr><td><p><span style=\"font-weight: 400;\">Commonly used for inspecting solder joints.<\/span><\/p><\/td><td><p><span style=\"font-weight: 400;\">Suitable for a wide range of defect detection.<\/span><\/p><\/td><\/tr><\/tbody><\/table><p>\u00a0<\/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-cf67fca elementor-widget elementor-widget-text-editor\" data-id=\"cf67fca\" 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<h2><b>Conclusion<\/b><\/h2><p><span style=\"font-weight: 400;\">AVI plays a crucial role in the <a href=\"https:\/\/www.elepcb.com\/pcb-manufacturing-process-and-services\/\">PCB manufacturing process<\/a>. It is an automatic system of circuit boards that uses imaging technology and computer algorithms.\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">It has largely replaced the manual inspection system by offering large benefits like accuracy, speed, versatility, and consistency.\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">AVI inspection system offers large benefits, including product quality, increased production efficiency, valuable insights into the production process for improvements, and more. With advanced technology and an automation system, the AVI system ensures that defect-free PCB is delivered to the customers.\u00a0<\/span><\/p><h2><b>Working with ElePCB<\/b><\/h2><p><span style=\"font-weight: 400;\">At ElePCB, we offer the PCB inspection services. We understand how vital the <a href=\"https:\/\/www.elepcb.com\/pcb-wiki\/pcb-inspection\/\">PCB inspection<\/a> system is to have the proper functionality of the product. We are the experts in this domain and have been providing <a href=\"https:\/\/www.elepcb.com\/service\/\"  data-wpil-monitor-id=\"418\">services<\/a> for decades. We use cutting-edge technologies. We can customize our services, ensuring they meet your specific requirements.\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">We perform various\u00a0<\/span><a href=\"https:\/\/www.elepcb.com\/pcb-wiki\/pcba-test\/\" target=\"_blank\" rel=\"noopener\">PCB testing and inspection<\/a><span style=\"font-weight: 400;\">\u00a0systems. You can discuss your specific PCB inspection needs, and we would love to provide you with the best quality work. Contact us today and request a quote. Our team is always ready to help you in your PCB journey.\u00a0<\/span><\/p><h2><b>FAQs<\/b><\/h2><h4><b>What types of defects can AVI detect on PCB?<\/b><\/h4><p><span style=\"font-weight: 400;\">AVI system can detect various defects, including missing components, soldering defects, component misalignment, PCB contamination, and more.<\/span><\/p><h4><b>How does AVI work?<\/b><\/h4><p><span style=\"font-weight: 400;\">AVI system captures images of PCB using high-resolution cameras. Specialized software will analyzed these images. It compares against the pre-defined criteria to identify the defects. ML algorithms also help to improve defect detection accuracy over time.\u00a0<\/span><\/p><h4><b>Is AVI suitable for all types of PCBs?<\/b><\/h4><p><span style=\"font-weight: 400;\">AVI can be used for many PCBs, including single-sided, double-sided, and multi-layer.\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">However, the suitability of AVI for specific applications depends on various factors like the complexity of the board, defect types, and the density of components.\u00a0<\/span><\/p><h4><b>Can AVI detect the hidden defects within the components?<\/b><\/h4><p><span style=\"font-weight: 400;\">While the AVI focuses on surface-level defects, it can still detect hidden defects like insufficient soldering, internal defects within the components using <a href=\"https:\/\/www.elepcb.com\/pcba-process\/pcb-x-ray-inspection\/\">X-ray inspection<\/a> techniques, and more. <\/span><\/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 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margin-bottom: 0px; margin-left: auto; padding: 25px 0px 15px; text-align: center; max-width: 846px;\">We provide technical expertise form prototype through 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\" 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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 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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 What is PCB Automated Visual Inspection (AVI)? PCB automated visual inspection is used in PCB manufacturing to examine the circuit board using a computerized system. The system includes various lighting systems, cameras, and computer algorithms.\u00a0 The process has replaced\u00a0manual inspection\u00a0and involves the image capture of PCB. The system analyzed the captured image [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":7104,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[44],"tags":[124,114],"class_list":["post-7103","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-pcb-assembly","tag-pcb-inspection"],"_links":{"self":[{"href":"https:\/\/www.elepcb.com\/hu\/wp-json\/wp\/v2\/posts\/7103","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.elepcb.com\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.elepcb.com\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.elepcb.com\/hu\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.elepcb.com\/hu\/wp-json\/wp\/v2\/comments?post=7103"}],"version-history":[{"count":22,"href":"https:\/\/www.elepcb.com\/hu\/wp-json\/wp\/v2\/posts\/7103\/revisions"}],"predecessor-version":[{"id":18943,"href":"https:\/\/www.elepcb.com\/hu\/wp-json\/wp\/v2\/posts\/7103\/revisions\/18943"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.elepcb.com\/hu\/wp-json\/wp\/v2\/media\/7104"}],"wp:attachment":[{"href":"https:\/\/www.elepcb.com\/hu\/wp-json\/wp\/v2\/media?parent=7103"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.elepcb.com\/hu\/wp-json\/wp\/v2\/categories?post=7103"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.elepcb.com\/hu\/wp-json\/wp\/v2\/tags?post=7103"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}