{"id":6289,"date":"2026-04-30T15:32:29","date_gmt":"2026-04-30T07:32:29","guid":{"rendered":"https:\/\/txjpcba.com\/?p=6289"},"modified":"2026-04-30T15:32:29","modified_gmt":"2026-04-30T07:32:29","slug":"what-is-x-ray-inspection-in-pcb-assembly","status":"publish","type":"post","link":"https:\/\/txjpcba.com\/ko\/what-is-x-ray-inspection-in-pcb-assembly\/","title":{"rendered":"What is X-ray Inspection in PCB Assembly?"},"content":{"rendered":"<h2 data-start=\"0\" data-end=\"45\"><strong data-start=\"0\" data-end=\"45\">X-ray Inspection in PCB Assembly<\/strong><\/h2>\n<p data-start=\"47\" data-end=\"373\"><strong data-start=\"47\" data-end=\"67\">\uc5d1\uc2a4\ub808\uc774 \uac80\uc0ac<\/strong> is an advanced, non-destructive testing method used in <a href=\"https:\/\/txjpcba.com\/ko\/pcb-%ec%96%b4%ec%85%88%eb%b8%94%eb%a6%ac\/\"><strong data-start=\"123\" data-end=\"139\">PCB \uc5b4\uc148\ube14\ub9ac<\/strong><\/a> to examine hidden solder joints and internal structures that cannot be seen with standard optical inspection. It plays a crucial role in modern <strong data-start=\"284\" data-end=\"300\">SMT \uc5b4\uc148\ube14\ub9ac<\/strong>, especially for complex components like BGA, QFN, and multilayer boards.<\/p>\n<p data-start=\"375\" data-end=\"518\">By using X-ray imaging, manufacturers can ensure the quality and reliability of solder connections inside the PCB without damaging the product.<\/p>\n<figure id=\"attachment_6290\" aria-describedby=\"caption-attachment-6290\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-6290 size-full\" src=\"https:\/\/txjpcba.com\/wp-content\/uploads\/2026\/04\/What-is-X-ray-inspection.jpg\" alt=\"What is X-ray inspection in pcb assembly\" width=\"800\" height=\"597\" srcset=\"https:\/\/txjpcba.com\/wp-content\/uploads\/2026\/04\/What-is-X-ray-inspection.jpg 800w, https:\/\/txjpcba.com\/wp-content\/uploads\/2026\/04\/What-is-X-ray-inspection-300x224.jpg 300w, https:\/\/txjpcba.com\/wp-content\/uploads\/2026\/04\/What-is-X-ray-inspection-768x573.jpg 768w, https:\/\/txjpcba.com\/wp-content\/uploads\/2026\/04\/What-is-X-ray-inspection-16x12.jpg 16w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-6290\" class=\"wp-caption-text\">What is X-ray inspection in pcb assembly<\/figcaption><\/figure>\n<h2 data-section-id=\"14xymwj\" data-start=\"520\" data-end=\"553\">Why X-ray Inspection is Needed<\/h2>\n<p data-start=\"555\" data-end=\"627\">In many SMT components, solder joints are hidden underneath the package:<\/p>\n<ul data-start=\"629\" data-end=\"748\">\n<li data-section-id=\"65wmum\" data-start=\"629\" data-end=\"664\"><strong data-start=\"631\" data-end=\"656\">BGA (Ball Grid Array)<\/strong> chips<\/li>\n<li data-section-id=\"u1ef9j\" data-start=\"665\" data-end=\"701\">QFN (Quad Flat No-lead) packages<\/li>\n<li data-section-id=\"1pmmtf2\" data-start=\"702\" data-end=\"748\">LGA and other bottom-terminated components<\/li>\n<\/ul>\n<p data-start=\"750\" data-end=\"861\">Traditional AOI cannot inspect these areas, making X-ray inspection essential in high-reliability PCB Assembly.<\/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<h2 data-section-id=\"mmkzfq\" data-start=\"863\" data-end=\"892\">How X-ray Inspection Works<\/h2>\n<p data-start=\"894\" data-end=\"930\">X-ray inspection systems operate by:<\/p>\n<ol data-start=\"932\" data-end=\"1084\">\n<li data-section-id=\"1b6w1yc\" data-start=\"932\" data-end=\"968\">Emitting X-rays through the PCB<\/li>\n<li data-section-id=\"30eao7\" data-start=\"969\" data-end=\"1023\">Capturing the transmitted radiation on a detector<\/li>\n<li data-section-id=\"iwgivq\" data-start=\"1024\" data-end=\"1084\">Creating an image based on material density differences<\/li>\n<\/ol>\n<ul data-start=\"1086\" data-end=\"1169\">\n<li data-section-id=\"j8dja4\" data-start=\"1086\" data-end=\"1133\">Dense materials (like solder) appear darker<\/li>\n<li data-section-id=\"1i4ckyq\" data-start=\"1134\" data-end=\"1169\">Less dense areas appear lighter<\/li>\n<\/ul>\n<p data-start=\"1171\" data-end=\"1253\">This allows engineers to analyze internal solder joints and detect hidden defects.<\/p>\n<h2 data-section-id=\"7ioe76\" data-start=\"1255\" data-end=\"1288\">What Defects Can X-ray Detect?<\/h2>\n<p data-start=\"1290\" data-end=\"1342\">X-ray inspection is highly effective at identifying:<\/p>\n<ul data-start=\"1344\" data-end=\"1551\">\n<li data-section-id=\"s8v0q3\" data-start=\"1344\" data-end=\"1385\">Solder voids (air gaps inside joints)<\/li>\n<li data-section-id=\"14zeezx\" data-start=\"1386\" data-end=\"1428\">Bridging (short circuits between pads)<\/li>\n<li data-section-id=\"1alh180\" data-start=\"1429\" data-end=\"1462\">Insufficient or excess solder<\/li>\n<li data-section-id=\"1g2pysn\" data-start=\"1463\" data-end=\"1487\">Misaligned BGA balls<\/li>\n<li data-section-id=\"1f1d6e8\" data-start=\"1488\" data-end=\"1514\">Head-in-pillow defects<\/li>\n<li data-section-id=\"1vvojtx\" data-start=\"1515\" data-end=\"1551\">Cracked or damaged solder joints<\/li>\n<\/ul>\n<p data-start=\"1553\" data-end=\"1638\">\ud83d\udc49 These defects are often invisible in standard <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=\"1602\" data-end=\"1618\">SMT \uc5b4\uc148\ube14\ub9ac<\/strong><\/a> inspection methods.<\/p>\n<h2 data-section-id=\"10eb58w\" data-start=\"1640\" data-end=\"1676\">Types of X-ray Inspection Systems<\/h2>\n<h3 data-section-id=\"421wmp\" data-start=\"1678\" data-end=\"1701\">2D X-ray Inspection<\/h3>\n<ul data-start=\"1703\" data-end=\"1798\">\n<li data-section-id=\"oj7jpm\" data-start=\"1703\" data-end=\"1727\">Produces flat images<\/li>\n<li data-section-id=\"145foui\" data-start=\"1728\" data-end=\"1762\">Faster and more cost-effective<\/li>\n<li data-section-id=\"1i98rre\" data-start=\"1763\" data-end=\"1798\">Suitable for general inspection<\/li>\n<\/ul>\n<h3 data-section-id=\"10satva\" data-start=\"1800\" data-end=\"1839\">3D X-ray (CT \u2013 Computed Tomography)<\/h3>\n<ul data-start=\"1841\" data-end=\"1972\">\n<li data-section-id=\"3fzraj\" data-start=\"1841\" data-end=\"1878\">Creates 3D cross-sectional images<\/li>\n<li data-section-id=\"18kowcn\" data-start=\"1879\" data-end=\"1916\">Allows detailed internal analysis<\/li>\n<li data-section-id=\"1v8ap28\" data-start=\"1917\" data-end=\"1972\">Ideal for complex PCB Assembly and failure analysis<\/li>\n<\/ul>\n<h2 data-section-id=\"141m1h8\" data-start=\"1974\" data-end=\"2023\">Where X-ray Inspection is Used in PCB Assembly<\/h2>\n<p data-start=\"2025\" data-end=\"2065\">X-ray inspection is typically performed:<\/p>\n<ul data-start=\"2067\" data-end=\"2171\">\n<li data-section-id=\"o90pii\" data-start=\"2067\" data-end=\"2093\">After reflow soldering<\/li>\n<li data-section-id=\"qam8jt\" data-start=\"2094\" data-end=\"2133\">During quality control and sampling<\/li>\n<li data-section-id=\"gkaz8g\" data-start=\"2134\" data-end=\"2171\">In failure analysis and debugging<\/li>\n<\/ul>\n<p data-start=\"2173\" data-end=\"2244\">It is often used alongside AOI to provide complete inspection coverage.<\/p>\n<h2 data-section-id=\"klc711\" data-start=\"2246\" data-end=\"2279\">Advantages of X-ray Inspection<\/h2>\n<ul data-start=\"2281\" data-end=\"2473\">\n<li data-section-id=\"78z0wg\" data-start=\"2281\" data-end=\"2308\">Non-destructive testing<\/li>\n<li data-section-id=\"cw25bc\" data-start=\"2309\" data-end=\"2345\">Ability to inspect hidden joints<\/li>\n<li data-section-id=\"8h9oqk\" data-start=\"2346\" data-end=\"2386\">High accuracy for complex components<\/li>\n<li data-section-id=\"14lvgjq\" data-start=\"2387\" data-end=\"2431\">Essential for BGA and fine-pitch devices<\/li>\n<li data-section-id=\"1ropljg\" data-start=\"2432\" data-end=\"2473\">Improves overall PCB Assembly quality<\/li>\n<\/ul>\n<h2 data-section-id=\"10xafcm\" data-start=\"2475\" data-end=\"2509\">Limitations of X-ray Inspection<\/h2>\n<ul data-start=\"2511\" data-end=\"2618\">\n<li data-section-id=\"jutre8\" data-start=\"2511\" data-end=\"2536\">\ub354 \ub192\uc740 \uc7a5\ube44 \ube44\uc6a9<\/li>\n<li data-section-id=\"wyrzw1\" data-start=\"2537\" data-end=\"2574\">Slower than AOI for large volumes<\/li>\n<li data-section-id=\"l61sjg\" data-start=\"2575\" data-end=\"2618\">Requires skilled operators for analysis<\/li>\n<\/ul>\n<p data-start=\"2620\" data-end=\"2697\">Despite these limitations, it is indispensable for advanced <strong data-start=\"2680\" data-end=\"2696\">SMT \uc5b4\uc148\ube14\ub9ac<\/strong>.<\/p>\n<h2 data-section-id=\"1td9j3a\" data-start=\"2699\" data-end=\"2725\">X-ray vs AOI Inspection<\/h2>\n<div class=\"TyagGW_tableContainer\">\n<div class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"2727\" data-end=\"2999\">\n<thead data-start=\"2727\" data-end=\"2774\">\n<tr data-start=\"2727\" data-end=\"2774\">\n<th class=\"\" data-start=\"2727\" data-end=\"2737\" data-col-size=\"sm\">\uae30\ub2a5<\/th>\n<th class=\"\" data-start=\"2737\" data-end=\"2756\" data-col-size=\"sm\">\uc5d1\uc2a4\ub808\uc774 \uac80\uc0ac<\/th>\n<th class=\"\" data-start=\"2756\" data-end=\"2774\" data-col-size=\"sm\">AOI Inspection<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"2821\" data-end=\"2999\">\n<tr data-start=\"2821\" data-end=\"2877\">\n<td data-start=\"2821\" data-end=\"2834\" data-col-size=\"sm\">Visibility<\/td>\n<td data-start=\"2834\" data-end=\"2861\" data-col-size=\"sm\">Internal + hidden joints<\/td>\n<td data-start=\"2861\" data-end=\"2877\" data-col-size=\"sm\">Surface only<\/td>\n<\/tr>\n<tr data-start=\"2878\" data-end=\"2905\">\n<td data-start=\"2878\" data-end=\"2886\" data-col-size=\"sm\">\uc18d\ub3c4<\/td>\n<td data-start=\"2886\" data-end=\"2897\" data-col-size=\"sm\">\ubcf4\ud1b5<\/td>\n<td data-start=\"2897\" data-end=\"2905\" data-col-size=\"sm\">Fast<\/td>\n<\/tr>\n<tr data-start=\"2906\" data-end=\"2931\">\n<td data-start=\"2906\" data-end=\"2913\" data-col-size=\"sm\">\ube44\uc6a9<\/td>\n<td data-start=\"2913\" data-end=\"2922\" data-col-size=\"sm\">\ub354 \ub192\uc74c<\/td>\n<td data-start=\"2922\" data-end=\"2931\" data-col-size=\"sm\">Lower<\/td>\n<\/tr>\n<tr data-start=\"2932\" data-end=\"2999\">\n<td data-start=\"2932\" data-end=\"2946\" data-col-size=\"sm\">\uc560\ud50c\ub9ac\ucf00\uc774\uc158<\/td>\n<td data-start=\"2946\" data-end=\"2973\" data-col-size=\"sm\">BGA, QFN, complex boards<\/td>\n<td data-start=\"2973\" data-end=\"2999\" data-col-size=\"sm\">General SMT inspection<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p data-start=\"3001\" data-end=\"3051\">\ud83d\udc49 Both methods are complementary in PCB Assembly.<\/p>\n<h2 data-section-id=\"nxpjae\" data-start=\"3053\" data-end=\"3093\">When Should You Use X-ray Inspection?<\/h2>\n<p data-start=\"3095\" data-end=\"3132\">X-ray inspection is recommended when:<\/p>\n<ul data-start=\"3134\" data-end=\"3323\">\n<li data-section-id=\"dw7og5\" data-start=\"3134\" data-end=\"3176\">Using BGA or bottom-mounted components<\/li>\n<li data-section-id=\"1vakv6f\" data-start=\"3177\" data-end=\"3253\">Manufacturing high-reliability products (medical, automotive, aerospace)<\/li>\n<li data-section-id=\"11kcprf\" data-start=\"3254\" data-end=\"3285\">Performing failure analysis<\/li>\n<li data-section-id=\"1pfnm6x\" data-start=\"3286\" data-end=\"3323\">Ensuring strict quality standards<\/li>\n<\/ul>\n<h2 data-section-id=\"1yinmkl\" data-start=\"3325\" data-end=\"3376\">How to Optimize X-ray Inspection in SMT Assembly<\/h2>\n<ul data-start=\"3378\" data-end=\"3562\">\n<li data-section-id=\"66n27z\" data-start=\"3378\" data-end=\"3427\">Use X-ray selectively for critical components<\/li>\n<li data-section-id=\"78eivf\" data-start=\"3428\" data-end=\"3474\">Combine with AOI and SPI for full coverage<\/li>\n<li data-section-id=\"t7rgkj\" data-start=\"3475\" data-end=\"3514\">Establish clear inspection criteria<\/li>\n<li data-section-id=\"1ocsg3g\" data-start=\"3515\" data-end=\"3562\">Train operators for accurate interpretation<\/li>\n<\/ul>\n<h2 data-section-id=\"8dtpi\" data-start=\"3564\" data-end=\"3577\">\uacb0\ub860<\/h2>\n<p data-start=\"3579\" data-end=\"3881\">X-ray inspection is a vital quality control technique in modern <strong data-start=\"3643\" data-end=\"3659\">PCB \uc5b4\uc148\ube14\ub9ac<\/strong> \uadf8\ub9ac\uace0 <strong data-start=\"3664\" data-end=\"3680\">SMT \uc5b4\uc148\ube14\ub9ac<\/strong>, enabling manufacturers to detect hidden defects that cannot be seen by optical methods. It ensures the reliability of complex electronic products and is especially important for advanced PCB designs.<\/p>\n<p data-start=\"3883\" data-end=\"4044\">By integrating X-ray inspection into the production process, manufacturers can significantly improve product quality and reduce the risk of failure in the field.<\/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;\">\uc124\uacc4 \uac80\ud1a0\ubd80\ud130 \ub0a9\ud488\uae4c\uc9c0 \ubaa8\ub4e0 \ub2e8\uacc4\ub97c \uc9c0\uc6d0\ud569\ub2c8\ub2e4. PCB \uc5b4\uc148\ube14\ub9ac \uacac\uc801\uc744 \uc694\uccad\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>X-ray Inspection in PCB Assembly X-ray inspection is an advanced, non-destructive testing method used in PCB Assembly to examine hidden [&hellip;]<\/p>","protected":false},"author":1,"featured_media":6290,"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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","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":"var(--ast-global-color-4)","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":""}},"footnotes":""},"categories":[71,445],"tags":[1204,1208,1209,1206,859,1207,1205,1195,1202,1203],"class_list":["post-6289","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faqs","category-pcb-assembly-faqs","tag-bga-inspection-x-ray","tag-board-assembly","tag-circuit-board-assembly-companies","tag-electronics-inspection-methods","tag-pcb-assembly-company","tag-pcb-quality-control","tag-pcba-hidden-defect-detection","tag-smt-assembly-inspection","tag-x-ray-inspection-in-pcb-assembly","tag-x-ray-inspection-pcb-assembly"],"_links":{"self":[{"href":"https:\/\/txjpcba.com\/ko\/wp-json\/wp\/v2\/posts\/6289","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=6289"}],"version-history":[{"count":1,"href":"https:\/\/txjpcba.com\/ko\/wp-json\/wp\/v2\/posts\/6289\/revisions"}],"predecessor-version":[{"id":6291,"href":"https:\/\/txjpcba.com\/ko\/wp-json\/wp\/v2\/posts\/6289\/revisions\/6291"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/txjpcba.com\/ko\/wp-json\/wp\/v2\/media\/6290"}],"wp:attachment":[{"href":"https:\/\/txjpcba.com\/ko\/wp-json\/wp\/v2\/media?parent=6289"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/txjpcba.com\/ko\/wp-json\/wp\/v2\/categories?post=6289"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/txjpcba.com\/ko\/wp-json\/wp\/v2\/tags?post=6289"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}