{"id":6577,"date":"2026-05-14T10:37:47","date_gmt":"2026-05-14T02:37:47","guid":{"rendered":"https:\/\/txjpcba.com\/?p=6577"},"modified":"2026-05-14T10:37:47","modified_gmt":"2026-05-14T02:37:47","slug":"how-do-you-handle-defective-boards","status":"publish","type":"post","link":"https:\/\/txjpcba.com\/ko\/how-do-you-handle-defective-boards\/","title":{"rendered":"How do you handle defective boards?"},"content":{"rendered":"<h2 data-section-id=\"flk9zi\" data-start=\"0\" data-end=\"38\">Handle defective boards<\/h2>\n<p data-start=\"40\" data-end=\"362\">Handling defective boards is a critical part of maintaining quality and reliability in <strong data-start=\"127\" data-end=\"143\">PCB \uc5b4\uc148\ube14\ub9ac<\/strong>, <strong data-start=\"145\" data-end=\"161\">SMT \uc5b4\uc148\ube14\ub9ac<\/strong>, \ubc0f <strong data-start=\"167\" data-end=\"191\">\ud134\ud0a4 PCB \uc5b4\uc148\ube14\ub9ac<\/strong>. A professional <strong data-start=\"208\" data-end=\"229\">PCB \uc81c\uc870<\/strong> partner follows a structured and transparent process to identify, isolate, analyze, and resolve defects while preventing recurrence.<\/p>\n<figure id=\"attachment_6578\" aria-describedby=\"caption-attachment-6578\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-6578\" src=\"https:\/\/txjpcba.com\/wp-content\/uploads\/2026\/05\/How-do-you-handle-defective-boards.jpg\" alt=\"How do you handle defective boards\" width=\"800\" height=\"597\" srcset=\"https:\/\/txjpcba.com\/wp-content\/uploads\/2026\/05\/How-do-you-handle-defective-boards.jpg 800w, https:\/\/txjpcba.com\/wp-content\/uploads\/2026\/05\/How-do-you-handle-defective-boards-300x224.jpg 300w, https:\/\/txjpcba.com\/wp-content\/uploads\/2026\/05\/How-do-you-handle-defective-boards-768x573.jpg 768w, https:\/\/txjpcba.com\/wp-content\/uploads\/2026\/05\/How-do-you-handle-defective-boards-16x12.jpg 16w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-6578\" class=\"wp-caption-text\">How do you handle defective boards<\/figcaption><\/figure>\n<h3 data-section-id=\"lkmuuq\" data-start=\"364\" data-end=\"406\">Immediate identification and isolation<\/h3>\n<p data-start=\"408\" data-end=\"524\">Once a defect is detected\u2014whether during AOI, X-ray, ICT, or functional testing\u2014the affected boards are immediately:<\/p>\n<ul data-start=\"526\" data-end=\"639\">\n<li data-section-id=\"14wjz90\" data-start=\"526\" data-end=\"566\">Marked and labeled as non-conforming<\/li>\n<li data-section-id=\"1c5ry14\" data-start=\"567\" data-end=\"603\">Removed from the production line<\/li>\n<li data-section-id=\"1jykuti\" data-start=\"604\" data-end=\"639\">Segregated in a controlled area<\/li>\n<\/ul>\n<p data-start=\"641\" data-end=\"735\">This prevents defective units from moving forward in the <a href=\"https:\/\/txjpcba.com\/ko\/smt-%ec%96%b4%ec%85%88%eb%b8%94%eb%a6%ac-%ec%84%9c%eb%b9%84%ec%8a%a4\/\"><strong data-start=\"698\" data-end=\"714\">SMT \uc5b4\uc148\ube14\ub9ac<\/strong><\/a> or shipping process.<\/p>\n<p align=\"center\"><a href=\"\/ko\/pcb-%ec%96%b4%ec%85%88%eb%b8%94%eb%a6%ac-%ea%b2%ac%ec%a0%81-%eb%b0%9b%ea%b8%b0\/\"><button style=\"background: black; color: white; padding: 8px 20px; border: none; cursor: pointer;\">PCB \uc5b4\uc148\ube14\ub9ac \uacac\uc801 \ubc1b\uae30<\/button><\/a><\/p>\n<h3 data-section-id=\"1725kf9\" data-start=\"737\" data-end=\"762\">Defect classification<\/h3>\n<p data-start=\"764\" data-end=\"856\">Not all defects are the same. Each issue is categorized to determine the appropriate action.<\/p>\n<p data-start=\"858\" data-end=\"889\">Common classifications include:<\/p>\n<ul data-start=\"891\" data-end=\"1124\">\n<li data-section-id=\"p6jkq1\" data-start=\"891\" data-end=\"961\"><strong data-start=\"893\" data-end=\"914\">Soldering defects<\/strong> (bridging, cold joints, insufficient solder)<\/li>\n<li data-section-id=\"1voxc0f\" data-start=\"962\" data-end=\"1023\"><strong data-start=\"964\" data-end=\"984\">Component issues<\/strong> (wrong part, polarity error, damage)<\/li>\n<li data-section-id=\"1avkscy\" data-start=\"1024\" data-end=\"1075\"><strong data-start=\"1026\" data-end=\"1045\">Process defects<\/strong> (misalignment, tombstoning)<\/li>\n<li data-section-id=\"ns9ifx\" data-start=\"1076\" data-end=\"1124\"><strong data-start=\"1078\" data-end=\"1103\">Design-related issues<\/strong> (DFM\/DFT problems)<\/li>\n<\/ul>\n<p data-start=\"1126\" data-end=\"1208\">Accurate classification helps streamline the recovery process in <a href=\"https:\/\/txjpcba.com\/ko\/pcb-%ec%96%b4%ec%85%88%eb%b8%94%eb%a6%ac\/\"><strong data-start=\"1191\" data-end=\"1207\">PCB \uc5b4\uc148\ube14\ub9ac<\/strong><\/a>.<\/p>\n<h3 data-section-id=\"knwtoi\" data-start=\"1210\" data-end=\"1239\">Root Cause Analysis (RCA)<\/h3>\n<p data-start=\"1241\" data-end=\"1321\">Before any correction is made, engineers perform a detailed Root Cause Analysis.<\/p>\n<p data-start=\"1323\" data-end=\"1337\">This involves:<\/p>\n<ul data-start=\"1339\" data-end=\"1536\">\n<li data-section-id=\"1bov5p4\" data-start=\"1339\" data-end=\"1385\">Reviewing production data and machine logs<\/li>\n<li data-section-id=\"1jv531s\" data-start=\"1386\" data-end=\"1427\">Analyzing inspection and test results<\/li>\n<li data-section-id=\"13a7fgq\" data-start=\"1428\" data-end=\"1479\">Checking component batches and supplier records<\/li>\n<li data-section-id=\"1x8wfdy\" data-start=\"1480\" data-end=\"1536\">Evaluating process parameters (e.g., reflow profile)<\/li>\n<\/ul>\n<p data-start=\"1538\" data-end=\"1646\">RCA ensures that the real cause\u2014not just the symptom\u2014is addressed within the <a href=\"https:\/\/txjpcba.com\/ko\/pcb-%ec%a0%9c%ec%a1%b0\/\"><strong data-start=\"1615\" data-end=\"1636\">PCB \uc81c\uc870<\/strong><\/a> workflow.<\/p>\n<h3 data-section-id=\"ypy10t\" data-start=\"1648\" data-end=\"1677\">Rework and repair process<\/h3>\n<p data-start=\"1679\" data-end=\"1759\">If the defective board is recoverable, controlled rework procedures are applied.<\/p>\n<p data-start=\"1761\" data-end=\"1792\">Typical rework actions include:<\/p>\n<ul data-start=\"1794\" data-end=\"1912\">\n<li data-section-id=\"da1bl2\" data-start=\"1794\" data-end=\"1838\">Removing and replacing faulty components<\/li>\n<li data-section-id=\"wzn6cb\" data-start=\"1839\" data-end=\"1872\">Re-soldering defective joints<\/li>\n<li data-section-id=\"1da1fi4\" data-start=\"1873\" data-end=\"1912\">Cleaning and restoring PCB surfaces<\/li>\n<\/ul>\n<p data-start=\"1914\" data-end=\"2074\">All rework follows IPC standards (such as IPC-7711\/7721) to ensure that repaired boards meet the same quality requirements as original <strong data-start=\"2049\" data-end=\"2065\">SMT \uc5b4\uc148\ube14\ub9ac<\/strong> outputs.<\/p>\n<h3 data-section-id=\"1rynmvp\" data-start=\"2076\" data-end=\"2102\">Retesting after rework<\/h3>\n<p data-start=\"2104\" data-end=\"2184\">After repair, boards must pass the same inspection and testing procedures again:<\/p>\n<ul data-start=\"2186\" data-end=\"2275\">\n<li data-section-id=\"ve1tx4\" data-start=\"2186\" data-end=\"2214\">AOI or visual inspection<\/li>\n<li data-section-id=\"1no9qys\" data-start=\"2215\" data-end=\"2246\">ICT or flying probe testing<\/li>\n<li data-section-id=\"197zx4x\" data-start=\"2247\" data-end=\"2275\">Functional testing (FCT)<\/li>\n<\/ul>\n<p data-start=\"2277\" data-end=\"2380\">Only boards that fully pass all tests are approved to continue in the <a href=\"https:\/\/txjpcba.com\/ko\/%ed%84%b4%ed%82%a4-pcb-%ec%96%b4%ec%85%88%eb%b8%94%eb%a6%ac-2\/\"><strong data-start=\"2347\" data-end=\"2371\">\ud134\ud0a4 PCB \uc5b4\uc148\ube14\ub9ac<\/strong><\/a> \ud504\ub85c\uc138\uc2a4.<\/p>\n<h3 data-section-id=\"o8s69p\" data-start=\"2382\" data-end=\"2422\">Scrap management (if non-repairable)<\/h3>\n<p data-start=\"2424\" data-end=\"2502\">If a board cannot be repaired or does not meet quality standards after rework:<\/p>\n<ul data-start=\"2504\" data-end=\"2644\">\n<li data-section-id=\"1x4z3sj\" data-start=\"2504\" data-end=\"2544\">It is officially classified as scrap<\/li>\n<li data-section-id=\"1vz8kg1\" data-start=\"2545\" data-end=\"2580\">Removed from production records<\/li>\n<li data-section-id=\"idt7ht\" data-start=\"2581\" data-end=\"2644\">Properly disposed of according to environmental regulations<\/li>\n<\/ul>\n<p data-start=\"2646\" data-end=\"2739\">This ensures that no substandard products enter the final delivery stage of <strong data-start=\"2722\" data-end=\"2738\">PCB \uc5b4\uc148\ube14\ub9ac<\/strong>.<\/p>\n<h3 data-section-id=\"13di6de\" data-start=\"2741\" data-end=\"2785\">Corrective and preventive actions (CAPA)<\/h3>\n<p data-start=\"2787\" data-end=\"2860\">To prevent recurrence, corrective and preventive actions are implemented.<\/p>\n<p data-start=\"2862\" data-end=\"2880\">These may include:<\/p>\n<ul data-start=\"2882\" data-end=\"3043\">\n<li data-section-id=\"501nhc\" data-start=\"2882\" data-end=\"2918\">Adjusting SMT machine parameters<\/li>\n<li data-section-id=\"k0m3wp\" data-start=\"2919\" data-end=\"2962\">Updating solder paste or stencil design<\/li>\n<li data-section-id=\"1gs7u5z\" data-start=\"2963\" data-end=\"2994\">Improving operator training<\/li>\n<li data-section-id=\"1ll8j4m\" data-start=\"2995\" data-end=\"3043\">Changing or requalifying component suppliers<\/li>\n<\/ul>\n<p data-start=\"3045\" data-end=\"3115\">CAPA is a key part of continuous improvement in <strong data-start=\"3093\" data-end=\"3114\">PCB \uc81c\uc870<\/strong>.<\/p>\n<h3 data-section-id=\"am1r0\" data-start=\"3117\" data-end=\"3151\">Documentation and traceability<\/h3>\n<p data-start=\"3153\" data-end=\"3226\">Every defective case is documented for traceability and quality analysis.<\/p>\n<p data-start=\"3228\" data-end=\"3254\">Records typically include:<\/p>\n<ul data-start=\"3256\" data-end=\"3411\">\n<li data-section-id=\"1i6m6ab\" data-start=\"3256\" data-end=\"3284\">Defect type and location<\/li>\n<li data-section-id=\"1204alr\" data-start=\"3285\" data-end=\"3317\">Affected batch or lot number<\/li>\n<li data-section-id=\"wr3ebd\" data-start=\"3318\" data-end=\"3341\">Root cause findings<\/li>\n<li data-section-id=\"e8hvdy\" data-start=\"3342\" data-end=\"3366\">Rework actions taken<\/li>\n<li data-section-id=\"gmgoip\" data-start=\"3367\" data-end=\"3411\">Final disposition (repaired or scrapped)<\/li>\n<\/ul>\n<p data-start=\"3413\" data-end=\"3503\">This data supports long-term quality improvement in <strong data-start=\"3465\" data-end=\"3481\">SMT \uc5b4\uc148\ube14\ub9ac<\/strong> \uadf8\ub9ac\uace0 <strong data-start=\"3486\" data-end=\"3502\">PCB \uc5b4\uc148\ube14\ub9ac<\/strong>.<\/p>\n<h3 data-section-id=\"10v9mea\" data-start=\"3505\" data-end=\"3531\">Customer communication<\/h3>\n<p data-start=\"3533\" data-end=\"3599\">Transparency is essential, especially in <strong data-start=\"3574\" data-end=\"3598\">\ud134\ud0a4 PCB \uc5b4\uc148\ube14\ub9ac<\/strong>.<\/p>\n<p data-start=\"3601\" data-end=\"3640\">Customers are typically informed about:<\/p>\n<ul data-start=\"3642\" data-end=\"3748\">\n<li data-section-id=\"14gwuny\" data-start=\"3642\" data-end=\"3676\">Major defects and their impact<\/li>\n<li data-section-id=\"1wznxhw\" data-start=\"3677\" data-end=\"3705\">Corrective actions taken<\/li>\n<li data-section-id=\"uqn1fv\" data-start=\"3706\" data-end=\"3748\">Delivery timeline adjustments (if any)<\/li>\n<\/ul>\n<p data-start=\"3750\" data-end=\"3801\">Detailed reports can also be provided upon request.<\/p>\n<h3 data-section-id=\"7ambym\" data-start=\"3803\" data-end=\"3837\">Continuous quality improvement<\/h3>\n<p data-start=\"3839\" data-end=\"3938\">Handling defective boards is not just about fixing issues\u2014it is about improving the entire process.<\/p>\n<p data-start=\"3940\" data-end=\"3967\">Manufacturers continuously:<\/p>\n<ul data-start=\"3969\" data-end=\"4102\">\n<li data-section-id=\"5dxi97\" data-start=\"3969\" data-end=\"3994\">Monitor defect trends<\/li>\n<li data-section-id=\"kktv0v\" data-start=\"3995\" data-end=\"4028\">Optimize production processes<\/li>\n<li data-section-id=\"eu7xg1\" data-start=\"4029\" data-end=\"4073\">Upgrade equipment and inspection systems<\/li>\n<li data-section-id=\"gmmggu\" data-start=\"4074\" data-end=\"4102\">Refine quality standards<\/li>\n<\/ul>\n<p data-start=\"4104\" data-end=\"4192\">This reduces future defect rates and enhances overall <strong data-start=\"4158\" data-end=\"4179\">PCB \uc81c\uc870<\/strong> \uc131\ub2a5.<\/p>\n<h3 data-section-id=\"1079bb9\" data-start=\"4194\" data-end=\"4208\">\uacb0\ub860<\/h3>\n<p data-start=\"4210\" data-end=\"4373\">Defective boards are handled through a structured process that includes identification, isolation, root cause analysis, controlled rework, and preventive action.<\/p>\n<p data-start=\"4375\" data-end=\"4581\">\uc804\ubb38\uac00\uc6a9 <strong data-start=\"4391\" data-end=\"4407\">PCB \uc5b4\uc148\ube14\ub9ac<\/strong>, <strong data-start=\"4409\" data-end=\"4425\">SMT \uc5b4\uc148\ube14\ub9ac<\/strong>, \ubc0f <strong data-start=\"4431\" data-end=\"4455\">\ud134\ud0a4 PCB \uc5b4\uc148\ube14\ub9ac<\/strong>, this approach ensures that only fully qualified products are delivered while continuously improving quality and reliability.<\/p>\n<p align=\"center\"><a href=\"\/ko\/pcb-%ec%96%b4%ec%85%88%eb%b8%94%eb%a6%ac-%ea%b2%ac%ec%a0%81-%eb%b0%9b%ea%b8%b0\/\"><button style=\"background: black; color: white; padding: 8px 20px; border: none; cursor: pointer;\">PCB \uc5b4\uc148\ube14\ub9ac \uacac\uc801 \ubc1b\uae30<\/button><\/a><\/p>\n<p style=\"text-align: center;\">\ud30c\uc77c\uc744 \uc5c5\ub85c\ub4dc\ud558\uace0 \uc790\uc138\ud55c \uacac\uc801\uc744 \ubc1b\uc544\ubcf4\uc138\uc694. \uc2dc\uc791\ud558\ub824\uba74 \uc544\ub798\ub97c \ud074\ub9ad\ud558\uc138\uc694.<br \/>\n\ub2f9\uc0ac\ub294 SMT, DIP \ubc0f \uc804\uccb4 \ud134\ud0a4 \uc194\ub8e8\uc158\uc744 \ud3ec\ud568\ud55c \uc804\ubb38 PCB \uc870\ub9bd \uc11c\ube44\uc2a4\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n<p style=\"text-align: center;\">NDA \uac00\ub2a5 \u2714 24\uc2dc\uac04 \uc774\ub0b4 \ube60\ub978 \uacac\uc801 \u2714 ISO \uc778\uc99d \uacf5\uc7a5 \u2714 \uc6d0\uc2a4\ud1b1 PCB \ubc0f PCBA \uc11c\ube44\uc2a4<\/p>","protected":false},"excerpt":{"rendered":"<p>Handle defective boards Handling defective boards is a critical part of maintaining quality and reliability in PCB Assembly, SMT Assembly, [&hellip;]<\/p>","protected":false},"author":1,"featured_media":6578,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[71,445],"tags":[1734,1742,1739,1735,1743,1738,1741,1740,1736,1737],"class_list":["post-6577","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faqs","category-pcb-assembly-faqs","tag-defective-pcb-handling-process","tag-electronics-manufacturing-quality-control","tag-electronics-repair-process-pcb","tag-pcb-assembly-rework-and-repair","tag-pcb-defect-prevention-strategies","tag-pcb-manufacturing-defect-analysis","tag-pcb-rework-standards-ipc","tag-root-cause-analysis-pcb-defects","tag-smt-assembly-defect-management","tag-turnkey-pcb-assembly-quality-control"],"_links":{"self":[{"href":"https:\/\/txjpcba.com\/ko\/wp-json\/wp\/v2\/posts\/6577","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/txjpcba.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/txjpcba.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/txjpcba.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/txjpcba.com\/ko\/wp-json\/wp\/v2\/comments?post=6577"}],"version-history":[{"count":2,"href":"https:\/\/txjpcba.com\/ko\/wp-json\/wp\/v2\/posts\/6577\/revisions"}],"predecessor-version":[{"id":6580,"href":"https:\/\/txjpcba.com\/ko\/wp-json\/wp\/v2\/posts\/6577\/revisions\/6580"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/txjpcba.com\/ko\/wp-json\/wp\/v2\/media\/6578"}],"wp:attachment":[{"href":"https:\/\/txjpcba.com\/ko\/wp-json\/wp\/v2\/media?parent=6577"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/txjpcba.com\/ko\/wp-json\/wp\/v2\/categories?post=6577"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/txjpcba.com\/ko\/wp-json\/wp\/v2\/tags?post=6577"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}