{"id":6570,"date":"2026-05-14T10:07:26","date_gmt":"2026-05-14T02:07:26","guid":{"rendered":"https:\/\/txjpcba.com\/?p=6570"},"modified":"2026-05-14T10:07:26","modified_gmt":"2026-05-14T02:07:26","slug":"what-is-your-quality-control-process","status":"publish","type":"post","link":"https:\/\/txjpcba.com\/zh\/what-is-your-quality-control-process\/","title":{"rendered":"What is your quality control process?"},"content":{"rendered":"<h2 data-section-id=\"jh33oa\" data-start=\"0\" data-end=\"40\">Quality control process<\/h2>\n<p data-start=\"42\" data-end=\"329\">A robust quality control process is essential in delivering reliable <strong data-start=\"111\" data-end=\"127\">PCB \u7d44\u88dd<\/strong>, <strong data-start=\"129\" data-end=\"145\">SMT \u7d44\u88dd<\/strong>, \u4ee5\u53ca <strong data-start=\"151\" data-end=\"175\">\u4ea4\u9470\u5319 PCB \u7d44\u88dd<\/strong> services. Quality is not just a final inspection step\u2014it is built into every stage of <a href=\"https:\/\/txjpcba.com\/zh\/pcb-%e8%a3%bd%e9%80%a0\/\"><strong data-start=\"262\" data-end=\"283\">PCB \u88fd\u9020<\/strong><\/a>, from component sourcing to final shipment.<\/p>\n<p data-start=\"331\" data-end=\"502\">A professional manufacturer implements a comprehensive, multi-stage quality control system to ensure consistency, performance, and compliance with international standards.<\/p>\n<figure id=\"attachment_6571\" aria-describedby=\"caption-attachment-6571\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-6571\" src=\"https:\/\/txjpcba.com\/wp-content\/uploads\/2026\/05\/What-is-your-quality-control-process.jpg\" alt=\"What is your quality control process\" width=\"800\" height=\"597\" srcset=\"https:\/\/txjpcba.com\/wp-content\/uploads\/2026\/05\/What-is-your-quality-control-process.jpg 800w, https:\/\/txjpcba.com\/wp-content\/uploads\/2026\/05\/What-is-your-quality-control-process-300x224.jpg 300w, https:\/\/txjpcba.com\/wp-content\/uploads\/2026\/05\/What-is-your-quality-control-process-768x573.jpg 768w, https:\/\/txjpcba.com\/wp-content\/uploads\/2026\/05\/What-is-your-quality-control-process-16x12.jpg 16w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-6571\" class=\"wp-caption-text\">What is your quality control process<\/figcaption><\/figure>\n<h3 data-section-id=\"14a1pqo\" data-start=\"504\" data-end=\"538\">\u9032\u6599\u54c1\u8cea\u63a7\u5236 (IQC)<\/h3>\n<p data-start=\"540\" data-end=\"588\">Quality control begins before production starts.<\/p>\n<p data-start=\"590\" data-end=\"664\">During IQC, all incoming materials and components are carefully inspected:<\/p>\n<ul data-start=\"666\" data-end=\"929\">\n<li data-section-id=\"4st1ur\" data-start=\"666\" data-end=\"735\">Verification of component authenticity and supplier documentation<\/li>\n<li data-section-id=\"d7mxhr\" data-start=\"736\" data-end=\"809\">Checking part numbers, specifications, and quantities against the BOM<\/li>\n<li data-section-id=\"occykd\" data-start=\"810\" data-end=\"874\">Visual inspection for damage, oxidation, or packaging issues<\/li>\n<li data-section-id=\"1dv1qdl\" data-start=\"875\" data-end=\"929\">Moisture-sensitive component (MSD) handling checks<\/li>\n<\/ul>\n<p data-start=\"931\" data-end=\"1014\">This step ensures that only qualified materials enter the <a href=\"https:\/\/txjpcba.com\/zh\/smt-%e7%b5%84%e8%a3%9d%e6%9c%8d%e5%8b%99\/\"><strong data-start=\"989\" data-end=\"1005\">SMT \u7d44\u88dd<\/strong><\/a> \u904e\u7a0b\u3002.<\/p>\n<p align=\"center\"><a href=\"\/zh\/%e5%8f%96%e5%be%97-pcb-%e7%b5%84%e4%bb%b6%e5%a0%b1%e5%83%b9\/\"><button style=\"background: black; color: white; padding: 8px 20px; border: none; cursor: pointer;\">\u53d6\u5f97 PCB \u7d44\u88dd\u5831\u50f9<\/button><\/a><\/p>\n<h3 data-section-id=\"s6how3\" data-start=\"1016\" data-end=\"1049\">Solder paste inspection (SPI)<\/h3>\n<p data-start=\"1051\" data-end=\"1134\">Before component placement, solder paste application is verified using SPI systems.<\/p>\n<p data-start=\"1136\" data-end=\"1150\">This includes:<\/p>\n<ul data-start=\"1152\" data-end=\"1293\">\n<li data-section-id=\"i6q3za\" data-start=\"1152\" data-end=\"1208\">Measuring solder paste volume, height, and alignment<\/li>\n<li data-section-id=\"1gc4dgd\" data-start=\"1209\" data-end=\"1254\">Detecting insufficient or excessive paste<\/li>\n<li data-section-id=\"1ab4k9m\" data-start=\"1255\" data-end=\"1293\">Ensuring accurate stencil printing<\/li>\n<\/ul>\n<p data-start=\"1295\" data-end=\"1406\">Proper solder paste deposition is critical for achieving strong and reliable solder joints in <a href=\"https:\/\/txjpcba.com\/zh\/pcb-%e8%a3%9d%e9%85%8d\/\"><strong data-start=\"1389\" data-end=\"1405\">PCB \u7d44\u88dd<\/strong><\/a>.<\/p>\n<h3 data-section-id=\"gy0k4p\" data-start=\"1408\" data-end=\"1441\">SMT placement process control<\/h3>\n<p data-start=\"1443\" data-end=\"1522\">\u671f\u9593 <strong data-start=\"1450\" data-end=\"1466\">SMT \u7d44\u88dd<\/strong>, high-precision machines place components onto the PCB.<\/p>\n<p data-start=\"1524\" data-end=\"1563\">Quality control at this stage includes:<\/p>\n<ul data-start=\"1565\" data-end=\"1733\">\n<li data-section-id=\"tg339d\" data-start=\"1565\" data-end=\"1613\">Machine calibration and program verification<\/li>\n<li data-section-id=\"1cum147\" data-start=\"1614\" data-end=\"1648\">\u9996\u4ef6\u6aa2\u9a57 (FAI)<\/li>\n<li data-section-id=\"vbl323\" data-start=\"1649\" data-end=\"1695\">Real-time monitoring of placement accuracy<\/li>\n<li data-section-id=\"mvlpwg\" data-start=\"1696\" data-end=\"1733\">Feeder and component verification<\/li>\n<\/ul>\n<p data-start=\"1735\" data-end=\"1811\">These controls ensure that components are correctly placed before soldering.<\/p>\n<h3 data-section-id=\"1fofb6v\" data-start=\"1813\" data-end=\"1841\">Reflow soldering control<\/h3>\n<p data-start=\"1843\" data-end=\"1911\">The reflow process is tightly controlled to ensure proper soldering.<\/p>\n<p data-start=\"1913\" data-end=\"1933\">Key factors include:<\/p>\n<ul data-start=\"1935\" data-end=\"2073\">\n<li data-section-id=\"5hpsoe\" data-start=\"1935\" data-end=\"1971\">Temperature profile optimization<\/li>\n<li data-section-id=\"1l9b0lt\" data-start=\"1972\" data-end=\"2012\">Thermal consistency across the board<\/li>\n<li data-section-id=\"1ijzbyo\" data-start=\"2013\" data-end=\"2073\">Prevention of defects such as tombstoning or cold joints<\/li>\n<\/ul>\n<p data-start=\"2075\" data-end=\"2153\">Stable reflow conditions are essential for high-quality <strong data-start=\"2131\" data-end=\"2152\">PCB \u88fd\u9020<\/strong>.<\/p>\n<h3 data-section-id=\"1hv01vo\" data-start=\"2155\" data-end=\"2193\">\u81ea\u52d5\u5149\u5b78\u6aa2\u6e2c (AOI)<\/h3>\n<p data-start=\"2195\" data-end=\"2250\">After reflow, AOI systems inspect the assembled boards.<\/p>\n<p data-start=\"2252\" data-end=\"2264\">AOI detects:<\/p>\n<ul data-start=\"2266\" data-end=\"2385\">\n<li data-section-id=\"1akwc5y\" data-start=\"2266\" data-end=\"2302\">Missing or misaligned components<\/li>\n<li data-section-id=\"1a6b576\" data-start=\"2303\" data-end=\"2345\">Solder bridges and insufficient solder<\/li>\n<li data-section-id=\"vkd96v\" data-start=\"2346\" data-end=\"2365\">Polarity errors<\/li>\n<li data-section-id=\"16x8cqj\" data-start=\"2366\" data-end=\"2385\">Surface defects<\/li>\n<\/ul>\n<p data-start=\"2387\" data-end=\"2480\">This is a critical step in identifying defects early in the <a href=\"https:\/\/txjpcba.com\/zh\/%e4%ba%a4%e9%91%b0%e5%8c%99-pcb-%e8%a3%9d%e9%85%8d\/\"><strong data-start=\"2447\" data-end=\"2471\">\u4ea4\u9470\u5319 PCB \u7d44\u88dd<\/strong><\/a> \u904e\u7a0b\u3002.<\/p>\n<h3 data-section-id=\"1vt0493\" data-start=\"2482\" data-end=\"2502\">X \u5149\u6aa2\u67e5<\/h3>\n<p data-start=\"2504\" data-end=\"2575\">For complex components such as BGAs and QFNs, X-ray inspection is used.<\/p>\n<p data-start=\"2577\" data-end=\"2587\">It allows:<\/p>\n<ul data-start=\"2589\" data-end=\"2725\">\n<li data-section-id=\"1y2voj7\" data-start=\"2589\" data-end=\"2627\">Inspection of hidden solder joints<\/li>\n<li data-section-id=\"hky203\" data-start=\"2628\" data-end=\"2671\">Detection of voids and internal defects<\/li>\n<li data-section-id=\"xau7gb\" data-start=\"2672\" data-end=\"2725\">Verification of solder quality beneath components<\/li>\n<\/ul>\n<p data-start=\"2727\" data-end=\"2794\">This ensures reliability in advanced <strong data-start=\"2764\" data-end=\"2780\">SMT \u7d44\u88dd<\/strong> \u61c9\u7528\u7a0b\u5f0f\u3002.<\/p>\n<h3 data-section-id=\"1n1wj1y\" data-start=\"2796\" data-end=\"2824\">\u7dda\u8def\u5167\u6e2c\u8a66 (ICT)<\/h3>\n<p data-start=\"2826\" data-end=\"2887\">ICT verifies the electrical performance of the assembled PCB.<\/p>\n<p data-start=\"2889\" data-end=\"2899\">It checks:<\/p>\n<ul data-start=\"2901\" data-end=\"3005\">\n<li data-section-id=\"vcyqvz\" data-start=\"2901\" data-end=\"2939\">Component values and functionality<\/li>\n<li data-section-id=\"1l2ld9w\" data-start=\"2940\" data-end=\"2976\">Circuit continuity and isolation<\/li>\n<li data-section-id=\"1roak0m\" data-start=\"2977\" data-end=\"3005\">Shorts and open circuits<\/li>\n<\/ul>\n<p data-start=\"3007\" data-end=\"3095\">ICT is widely used in mass production <strong data-start=\"3045\" data-end=\"3061\">PCB \u7d44\u88dd<\/strong> to ensure electrical correctness.<\/p>\n<h3 data-section-id=\"j4881b\" data-start=\"3097\" data-end=\"3125\">Functional testing (FCT)<\/h3>\n<p data-start=\"3127\" data-end=\"3197\">Functional testing validates that the final product works as intended.<\/p>\n<p data-start=\"3199\" data-end=\"3213\">This includes:<\/p>\n<ul data-start=\"3215\" data-end=\"3346\">\n<li data-section-id=\"58f9bo\" data-start=\"3215\" data-end=\"3255\">Simulating real operating conditions<\/li>\n<li data-section-id=\"10oz2ay\" data-start=\"3256\" data-end=\"3300\">Testing product behavior and performance<\/li>\n<li data-section-id=\"kb0lum\" data-start=\"3301\" data-end=\"3346\">Verifying firmware and system integration<\/li>\n<\/ul>\n<p data-start=\"3348\" data-end=\"3451\">FCT is especially important in <strong data-start=\"3379\" data-end=\"3403\">\u4ea4\u9470\u5319 PCB \u7d44\u88dd<\/strong>, where complete product validation is required.<\/p>\n<h3 data-section-id=\"1k7wfn9\" data-start=\"3453\" data-end=\"3484\">Final Quality Control (FQC)<\/h3>\n<p data-start=\"3486\" data-end=\"3535\">Before shipment, a final inspection is performed.<\/p>\n<p data-start=\"3537\" data-end=\"3551\">This includes:<\/p>\n<ul data-start=\"3553\" data-end=\"3702\">\n<li data-section-id=\"lr09qo\" data-start=\"3553\" data-end=\"3593\">Visual inspection of finished boards<\/li>\n<li data-section-id=\"1pc00kq\" data-start=\"3594\" data-end=\"3636\">Verification of labeling and packaging<\/li>\n<li data-section-id=\"6m2ukh\" data-start=\"3637\" data-end=\"3675\">Review of test results and reports<\/li>\n<li data-section-id=\"s0uof9\" data-start=\"3676\" data-end=\"3702\">Random sampling checks<\/li>\n<\/ul>\n<p data-start=\"3704\" data-end=\"3765\">Only products that pass all checks are approved for delivery.<\/p>\n<h3 data-section-id=\"1n2ppbw\" data-start=\"3767\" data-end=\"3801\">Traceability and documentation<\/h3>\n<p data-start=\"3803\" data-end=\"3871\">A complete traceability system is maintained throughout the process.<\/p>\n<p data-start=\"3873\" data-end=\"3887\">This includes:<\/p>\n<ul data-start=\"3889\" data-end=\"3999\">\n<li data-section-id=\"r4009g\" data-start=\"3889\" data-end=\"3917\">Component batch tracking<\/li>\n<li data-section-id=\"10z79dh\" data-start=\"3918\" data-end=\"3940\">Production records<\/li>\n<li data-section-id=\"7l77sr\" data-start=\"3941\" data-end=\"3969\">Inspection and test data<\/li>\n<li data-section-id=\"9hp981\" data-start=\"3970\" data-end=\"3999\">Operator and machine logs<\/li>\n<\/ul>\n<p data-start=\"4001\" data-end=\"4118\">Traceability ensures that any issue can be quickly identified and resolved within the <strong data-start=\"4087\" data-end=\"4108\">PCB \u88fd\u9020<\/strong> workflow.<\/p>\n<h3 data-section-id=\"32cyww\" data-start=\"4120\" data-end=\"4160\">Continuous improvement and standards<\/h3>\n<p data-start=\"4162\" data-end=\"4211\">Quality control is continuously improved through:<\/p>\n<ul data-start=\"4213\" data-end=\"4357\">\n<li data-section-id=\"1475igc\" data-start=\"4213\" data-end=\"4242\">Root cause analysis (RCA)<\/li>\n<li data-section-id=\"1ah0a98\" data-start=\"4243\" data-end=\"4287\">Corrective and preventive actions (CAPA)<\/li>\n<li data-section-id=\"am792z\" data-start=\"4288\" data-end=\"4329\">Compliance with IPC and ISO standards<\/li>\n<li data-section-id=\"1ophjm3\" data-start=\"4330\" data-end=\"4357\">Regular internal audits<\/li>\n<\/ul>\n<p data-start=\"4359\" data-end=\"4451\">These practices ensure long-term quality stability in <strong data-start=\"4413\" data-end=\"4429\">SMT \u7d44\u88dd<\/strong> \u548c <strong data-start=\"4434\" data-end=\"4450\">PCB \u7d44\u88dd<\/strong>.<\/p>\n<h3 data-section-id=\"1079bb9\" data-start=\"4453\" data-end=\"4467\">\u7e3d\u7d50<\/h3>\n<p data-start=\"4469\" data-end=\"4669\">The quality control process in <strong data-start=\"4500\" data-end=\"4516\">PCB \u7d44\u88dd<\/strong>, <strong data-start=\"4518\" data-end=\"4534\">SMT \u7d44\u88dd<\/strong>, \u4ee5\u53ca <strong data-start=\"4540\" data-end=\"4564\">\u4ea4\u9470\u5319 PCB \u7d44\u88dd<\/strong> is a comprehensive system that spans every stage of production\u2014from incoming materials to final testing.<\/p>\n<p data-start=\"4671\" data-end=\"4882\">By implementing strict inspections, advanced testing technologies, and full traceability, a professional <strong data-start=\"4776\" data-end=\"4797\">PCB \u88fd\u9020<\/strong> partner ensures high reliability, consistent performance, and customer satisfaction.<\/p>\n<p align=\"center\"><a href=\"\/zh\/%e5%8f%96%e5%be%97-pcb-%e7%b5%84%e4%bb%b6%e5%a0%b1%e5%83%b9\/\"><button style=\"background: black; color: white; padding: 8px 20px; border: none; cursor: pointer;\">\u53d6\u5f97 PCB \u7d44\u88dd\u5831\u50f9<\/button><\/a><\/p>\n<p style=\"text-align: center;\">\u8a08\u5283\u4e0b\u4e00\u500b\u96fb\u5b50\u5c08\u6848\uff1f\u5f9e PCB \u7d44\u88dd\u5831\u50f9\u958b\u59cb\u3002.<br \/>\n\u6211\u5011\u63d0\u4f9b\u5c08\u696d\u7684 PCB \u88dd\u914d\u670d\u52d9\uff0c\u5305\u62ec SMT\u3001DIP \u53ca\u5b8c\u6574\u7684\u7d71\u5305\u89e3\u6c7a\u65b9\u6848\u3002.<\/p>\n<p style=\"text-align: center;\">\u2714 \u63d0\u4f9b NDA \u2714 24 \u5c0f\u6642\u5167\u5feb\u901f\u5831\u50f9 \u2714 ISO \u8a8d\u8b49\u5de5\u5ee0 \u2714 \u4e00\u7ad9\u5f0f PCB &amp; PCBA \u670d\u52d9<\/p>","protected":false},"excerpt":{"rendered":"<p>Quality control process A robust quality control process is essential in delivering reliable PCB Assembly, SMT Assembly, and Turnkey PCB [&hellip;]<\/p>","protected":false},"author":1,"featured_media":6571,"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":[1718,1720,1647,1721,1719,1723,1722,1716,1717],"class_list":["post-6570","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faqs","category-pcb-assembly-faqs","tag-aoi-ict-fct-pcb-testing","tag-electronics-assembly-inspection-process","tag-pcb-assembly-quality-control-process","tag-pcb-defect-detection-methods","tag-pcb-manufacturing-quality-system","tag-pcb-production-quality-control","tag-quality-assurance-smt-assembly","tag-smt-assembly-inspection-steps","tag-turnkey-pcb-assembly-quality-assurance"],"_links":{"self":[{"href":"https:\/\/txjpcba.com\/zh\/wp-json\/wp\/v2\/posts\/6570","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/txjpcba.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/txjpcba.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/txjpcba.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/txjpcba.com\/zh\/wp-json\/wp\/v2\/comments?post=6570"}],"version-history":[{"count":2,"href":"https:\/\/txjpcba.com\/zh\/wp-json\/wp\/v2\/posts\/6570\/revisions"}],"predecessor-version":[{"id":6573,"href":"https:\/\/txjpcba.com\/zh\/wp-json\/wp\/v2\/posts\/6570\/revisions\/6573"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/txjpcba.com\/zh\/wp-json\/wp\/v2\/media\/6571"}],"wp:attachment":[{"href":"https:\/\/txjpcba.com\/zh\/wp-json\/wp\/v2\/media?parent=6570"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/txjpcba.com\/zh\/wp-json\/wp\/v2\/categories?post=6570"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/txjpcba.com\/zh\/wp-json\/wp\/v2\/tags?post=6570"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}