{"id":4827,"date":"2024-11-06T16:56:58","date_gmt":"2024-11-06T08:56:58","guid":{"rendered":"https:\/\/addmaker.a2hosted.com\/hencolin\/?p=4827"},"modified":"2026-07-09T16:12:25","modified_gmt":"2026-07-09T08:12:25","slug":"amc-control-with-chemical-filters-for-semiconductor-cleanrooms","status":"publish","type":"post","link":"https:\/\/www.hencolin.com\/en\/air-filter-knowledge-installation-guides-hencolin\/amc-control-with-chemical-filters-for-semiconductor-cleanrooms\/","title":{"rendered":"AMC Control and Chemical Filters"},"content":{"rendered":"\n<p>In addition to the common industrial pollution, in the semiconductor high-end wafer manufacturing plants, the concentration of Airborne Molecular Contamination&nbsp;(AMC),&nbsp;which is ten times smaller than a virus, has been a concern for a long time.&nbsp;Aside from&nbsp;personnel safety concerns, wafer yields can be easily affected. However, AMCs come from a wide range of sources, so how to effectively control them is becoming a major&nbsp;issue&nbsp;for&nbsp;the&nbsp;related industries.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/i0.wp.com\/www.hencolin.com\/wp-content\/uploads\/2023\/12\/s1\u6ffe\u7db2\u77e5\u8b58\u5716-\u9078\u55ae\u4e3b\u756b\u97622-07.jpg?ssl=1\"><img fetchpriority=\"high\" decoding=\"async\" width=\"380\" height=\"475\" src=\"https:\/\/i0.wp.com\/www.hencolin.com\/wp-content\/uploads\/2023\/12\/s1\u6ffe\u7db2\u77e5\u8b58\u5716-\u9078\u55ae\u4e3b\u756b\u97622-07.jpg?resize=380%2C475&#038;ssl=1\" alt=\"\" class=\"wp-image-4830\" srcset=\"https:\/\/i0.wp.com\/www.hencolin.com\/wp-content\/uploads\/2023\/12\/s1\u6ffe\u7db2\u77e5\u8b58\u5716-\u9078\u55ae\u4e3b\u756b\u97622-07.jpg?w=380&amp;ssl=1 380w, https:\/\/i0.wp.com\/www.hencolin.com\/wp-content\/uploads\/2023\/12\/s1\u6ffe\u7db2\u77e5\u8b58\u5716-\u9078\u55ae\u4e3b\u756b\u97622-07.jpg?resize=240%2C300&amp;ssl=1 240w, https:\/\/i0.wp.com\/www.hencolin.com\/wp-content\/uploads\/2023\/12\/s1\u6ffe\u7db2\u77e5\u8b58\u5716-\u9078\u55ae\u4e3b\u756b\u97622-07.jpg?resize=300%2C375&amp;ssl=1 300w\" sizes=\"(max-width: 380px) 100vw, 380px\" data-recalc-dims=\"1\" \/><\/a><\/figure>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 ez-toc-wrap-left counter-hierarchy ez-toc-counter ez-toc-transparent ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u5927\u7db1<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.hencolin.com\/en\/air-filter-knowledge-installation-guides-hencolin\/amc-control-with-chemical-filters-for-semiconductor-cleanrooms\/#Classification_of_AMC\" >Classification of AMC<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.hencolin.com\/en\/air-filter-knowledge-installation-guides-hencolin\/amc-control-with-chemical-filters-for-semiconductor-cleanrooms\/#Why_is_AMC_important\" >Why is AMC important?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.hencolin.com\/en\/air-filter-knowledge-installation-guides-hencolin\/amc-control-with-chemical-filters-for-semiconductor-cleanrooms\/#Common_sources_of_AMC\" >Common sources of AMC:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.hencolin.com\/en\/air-filter-knowledge-installation-guides-hencolin\/amc-control-with-chemical-filters-for-semiconductor-cleanrooms\/#Importance_of_Chemical_Filters\" >Importance of Chemical Filters<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Classification_of_AMC\"><\/span>Classification of AMC<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul>\n<li>MA&nbsp;(Molecular&nbsp;Acids)<\/li>\n\n\n\n<li>MB&nbsp;(Molecula&nbsp;Bases)<\/li>\n\n\n\n<li>MC&nbsp;(Molecula&nbsp;Condensables)<\/li>\n\n\n\n<li>MD&nbsp;(Molecula&nbsp;Dopands)<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/www.hencolin.com\/wp-content\/uploads\/2023\/12\/AMC\u7684\u5206\u985e-04-1024x820.jpg?ssl=1\"><img decoding=\"async\" width=\"1024\" height=\"820\" src=\"https:\/\/i0.wp.com\/www.hencolin.com\/wp-content\/uploads\/2023\/12\/AMC\u7684\u5206\u985e-04.jpg?resize=1024%2C820&#038;ssl=1\" alt=\"\" class=\"wp-image-4828\" srcset=\"https:\/\/i0.wp.com\/www.hencolin.com\/wp-content\/uploads\/2023\/12\/AMC\u7684\u5206\u985e-04.jpg?resize=1024%2C820&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.hencolin.com\/wp-content\/uploads\/2023\/12\/AMC\u7684\u5206\u985e-04.jpg?resize=300%2C240&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.hencolin.com\/wp-content\/uploads\/2023\/12\/AMC\u7684\u5206\u985e-04.jpg?resize=768%2C615&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.hencolin.com\/wp-content\/uploads\/2023\/12\/AMC\u7684\u5206\u985e-04.jpg?resize=600%2C481&amp;ssl=1 600w, https:\/\/i0.wp.com\/www.hencolin.com\/wp-content\/uploads\/2023\/12\/AMC\u7684\u5206\u985e-04.jpg?w=1298&amp;ssl=1 1298w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-recalc-dims=\"1\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_is_AMC_important\"><\/span>Why is AMC important?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The impact of AMC on the yield of semiconductor processes has actually been prevented by the relevant industries&nbsp;for a long while, but in the past, it was only&nbsp;being focused&nbsp;on&nbsp;large particles. With the improvement of process fineness, the standards have become more stringent, and the AMC test items have gradually expanded from acid and&nbsp;base&nbsp;substances to include organic substances. What is more,&nbsp;the monitoring of organic species has also gradually expanded from the dozen that were emphasized by the semiconductor industry to include new unknown organic species.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Common_sources_of_AMC\"><\/span>Common sources of AMC:<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul>\n<li>Chemicals used in the manufacturing process, resulting in reduced efficiency or release of chemical filters.<\/li>\n\n\n\n<li>Organic sulfide emissions from neighboring factories using sulfur-containing organic solvents.<\/li>\n\n\n\n<li>Volatile organic compounds&nbsp;(VOCs)&nbsp;and photochemical reactants emitted from petrochemical processes.<\/li>\n\n\n\n<li>Sulfur oxides and nitrogen oxides in the atmosphere.<\/li>\n\n\n\n<li>VOCs from building materials, machinery, equipment and other related items in the clean room.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Importance_of_Chemical_Filters\"><\/span>Importance of Chemical Filters<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Chemical filters are usually made of activated carbon and coconut charcoal, which are effective in controlling AMCs. For this reason, clean rooms install chemical filters&nbsp;(or&nbsp;gas&nbsp;phase&nbsp;filters) on MAUs, RAUs, FFUs, or inside process machines, while general buildings install gas&nbsp;phase&nbsp;filters in air&nbsp;conditioning boxes&nbsp;or indoor cleaning units to effectively control and reduce AMC concentrations.<\/p>\n\n\n\n<p>As semiconductor technology moves towards advanced processes below 7nm, the need for chemical filters that can effectively control AMC has increased dramatically. After all, it only takes 5 to 25 gaseous molecules to deposit on the surface to fill up the 7nm linewidth, which in turn affects wafer yields, and thus demonstrates the importance of chemical filters.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In addition to the common industrial pollution, in the semiconductor high-end wafer manufacturing plants, the concentration of Airborne Molecular Contamination&nbsp;(AMC),&nbsp;which is ten times smaller than a virus, has been a concern for a long time.&nbsp;Aside from&nbsp;personnel safety concerns, wafer yields can be easily affected. However, AMCs come from a wide range of sources, so how [&hellip;]<\/p>\n","protected":false},"author":13,"featured_media":12305,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_jetpack_memberships_contains_paid_content":false},"categories":[141,381],"tags":[],"blocksy_meta":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>AMC Control and Chemical Filters - Hencolin International |Industrial Air Filter Manufacturer<\/title>\n<meta name=\"description\" content=\"Learn how chemical filters control airborne molecular contamination in semiconductor cleanrooms, protecting wafer yield from acids, bases, VOCs and organic species.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.hencolin.com\/en\/air-filter-knowledge-installation-guides-hencolin\/amc-control-with-chemical-filters-for-semiconductor-cleanrooms\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"AMC Control and Chemical Filters - 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