{"id":47987,"date":"2025-09-24T09:41:42","date_gmt":"2025-09-24T16:41:42","guid":{"rendered":"https:\/\/www.cohu.com\/?p=47987"},"modified":"2025-09-24T09:41:42","modified_gmt":"2025-09-24T16:41:42","slug":"virtual-metrology-in-semiconductor-manufacturing","status":"publish","type":"post","link":"https:\/\/www.cohu.com\/tignis\/virtual-metrology-in-semiconductor-manufacturing","title":{"rendered":"Virtual Metrology In Semiconductor Manufacturing"},"content":{"rendered":"\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-m8g28v5p-746d8baae8d89148fb421ccddfa3a141\">\n.avia-section.av-m8g28v5p-746d8baae8d89148fb421ccddfa3a141 .av-parallax .av-parallax-inner{\nbackground-repeat:no-repeat;\nbackground-image:url(\/wp-content\/uploads\/2025\/03\/resources-banner-1500x333.jpg);\nbackground-position:50% 50%;\nbackground-attachment:scroll;\n}\n.avia-section.av-m8g28v5p-746d8baae8d89148fb421ccddfa3a141 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.av-special-heading-tag{\nfont-size:33px;\n}\n.av-special-heading.av-m8g29ww6-eae5135b0895c3f76a92dcd7e248c63a .av-subheading{\nfont-size:15px;\n}\n}\n<\/style>\n<div  class='av-special-heading av-m8g29ww6-eae5135b0895c3f76a92dcd7e248c63a av-special-heading-h1 custom-color-heading blockquote modern-quote  avia-builder-el-2  avia-builder-el-no-sibling  av-inherit-size av-linked-heading'><h1 class='av-special-heading-tag '  itemprop=\"headline\"  >PHYSICS, MACHINES AND DATA<\/h1><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-ihh5rt-7c29a3ec1a8f6761bd43bebe8db0c191\">\n.flex_column.av-ihh5rt-7c29a3ec1a8f6761bd43bebe8db0c191{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-ihh5rt-7c29a3ec1a8f6761bd43bebe8db0c191 av_one_third  avia-builder-el-3  el_after_av_two_third  avia-builder-el-last  flex_column_div av-zero-column-padding  '     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-ma2knfbk-918217cfcb464ad4e8c174fb066f572c\">\n.avia-image-container.av-ma2knfbk-918217cfcb464ad4e8c174fb066f572c img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-ma2knfbk-918217cfcb464ad4e8c174fb066f572c .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-ma2knfbk-918217cfcb464ad4e8c174fb066f572c av-styling- avia-align-center  avia-builder-el-4  avia-builder-el-no-sibling '   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-45060 avia-img-lazy-loading-not-45060 avia_image ' src=\"\/wp-content\/uploads\/2025\/03\/Tignis-Logo-cohu-tagline-all-white-transparent-300x89.png\" alt='Tignis, A Cohu Analytics Solution logo in white' title='Tignis-Logo-cohu-tagline-all white-transparent'  height=\"89\" width=\"300\"  itemprop=\"thumbnailUrl\" srcset=\"\/wp-content\/uploads\/2025\/03\/Tignis-Logo-cohu-tagline-all-white-transparent-300x89.png 300w, \/wp-content\/uploads\/2025\/03\/Tignis-Logo-cohu-tagline-all-white-transparent-1030x305.png 1030w, \/wp-content\/uploads\/2025\/03\/Tignis-Logo-cohu-tagline-all-white-transparent-768x228.png 768w, \/wp-content\/uploads\/2025\/03\/Tignis-Logo-cohu-tagline-all-white-transparent-1536x455.png 1536w, \/wp-content\/uploads\/2025\/03\/Tignis-Logo-cohu-tagline-all-white-transparent-2048x607.png 2048w, \/wp-content\/uploads\/2025\/03\/Tignis-Logo-cohu-tagline-all-white-transparent-1500x444.png 1500w, \/wp-content\/uploads\/2025\/03\/Tignis-Logo-cohu-tagline-all-white-transparent-705x209.png 705w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/div><\/div><\/div><\/div>\n<\/div><\/div><\/main><!-- close content main element --><\/div><\/div><\/div><div id='after_section_1'  class='main_color av_default_container_wrap container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-47987'><div class='entry-content-wrapper clearfix'>\n<div  class='flex_column av-vy1v15-87391fb579ef2232f8ee8985e586388c av_one_full  avia-builder-el-5  el_after_av_section  el_before_av_hr  avia-builder-el-first  first flex_column_div  '     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-m8gamj24-08643594e48e0f4b1ac50aad43c574bb\">\n#top .av_textblock_section.av-m8gamj24-08643594e48e0f4b1ac50aad43c574bb .avia_textblock{\nfont-size:40px;\n}\n<\/style>\n<section  class='av_textblock_section av-m8gamj24-08643594e48e0f4b1ac50aad43c574bb '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><div id=\"title\" class=\"style-scope ytd-watch-metadata\">\n<p class=\"style-scope ytd-watch-metadata\" style=\"text-align: center;\"><strong>Virtual Metrology In Semiconductor Manufacturing<\/strong><\/p>\n<\/div>\n<div id=\"top-row\" class=\"style-scope ytd-watch-metadata\">\n<div id=\"owner\" class=\"item style-scope ytd-watch-metadata\"><\/div>\n<\/div>\n<\/div><\/section><br \/>\n<div  class='av-post-metadata-container av-m8j75jxs-db831c992b22256986099294efdf6686 av-metadata-container-align-center  avia-builder-el-7  el_after_av_textblock  avia-builder-el-last  av-metadata-container-1'><div class='av-post-metadata-container-inner'><span class=\"av-post-metadata-content av-post-metadata-meta-content\"><span class=\"av-post-metadata-content av-post-metadata-published\"><span class=\"av-post-metadata-published-date\" >24. September 2025<\/span><\/span><span class=\"av-post-metadata-content av-post-metadata-separator\">\/<\/span><span class=\"av-post-metadata-content av-post-metadata-category\"><span class=\"av-metadata-before av-metadata-before-categories\">in<\/span><span class=\"av-post-metadata-category-link\" ><a href=\"https:\/\/www.cohu.com\/category\/thought-leadership\/\" >Thought Leadership<\/a><\/span><\/span><\/span><\/div><\/div><\/p><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1bv7v3t-a95a3fe20eb3c9b5d76211f468174fcf\">\n#top .hr.hr-invisible.av-1bv7v3t-a95a3fe20eb3c9b5d76211f468174fcf{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-1bv7v3t-a95a3fe20eb3c9b5d76211f468174fcf hr-invisible  avia-builder-el-8  el_after_av_one_full  el_before_av_image '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-m8g2cr45-4d95a07582331a7e8472c9698eea502e\">\n.avia-image-container.av-m8g2cr45-4d95a07582331a7e8472c9698eea502e img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-m8g2cr45-4d95a07582331a7e8472c9698eea502e .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-m8g2cr45-4d95a07582331a7e8472c9698eea502e av-styling- avia-align-center  avia-builder-el-9  el_after_av_hr  el_before_av_hr '   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-47989 avia-img-lazy-loading-not-47989 avia_image ' src=\"\/wp-content\/uploads\/2025\/09\/Jon-H-semi-video-4-thumbnail.png\" alt='' title='Jon H semi video 4 thumbnail'  height=\"607\" width=\"942\"  itemprop=\"thumbnailUrl\" srcset=\"\/wp-content\/uploads\/2025\/09\/Jon-H-semi-video-4-thumbnail.png 942w, \/wp-content\/uploads\/2025\/09\/Jon-H-semi-video-4-thumbnail-300x193.png 300w, \/wp-content\/uploads\/2025\/09\/Jon-H-semi-video-4-thumbnail-768x495.png 768w, \/wp-content\/uploads\/2025\/09\/Jon-H-semi-video-4-thumbnail-705x454.png 705w\" sizes=\"(max-width: 942px) 100vw, 942px\" \/><\/div><\/div><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lbiuux-3a749e977cbb88a05299ca7ae31228f5\">\n#top .hr.hr-invisible.av-lbiuux-3a749e977cbb88a05299ca7ae31228f5{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-lbiuux-3a749e977cbb88a05299ca7ae31228f5 hr-invisible  avia-builder-el-10  el_after_av_image  el_before_av_one_full '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<div  class='flex_column av-tuqj09-3cc37ce1123cba055c8eb4140e4e2149 av_one_full  avia-builder-el-11  el_after_av_hr  el_before_av_codeblock  first flex_column_div  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-m8g2fmrk-8b9f652136afad41086947b64f0762b7\">\n#top .hr.hr-invisible.av-m8g2fmrk-8b9f652136afad41086947b64f0762b7{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-m8g2fmrk-8b9f652136afad41086947b64f0762b7 hr-invisible  avia-builder-el-12  el_before_av_textblock  avia-builder-el-first '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-m8g2eekt-b107f7410796bb625fa647253b1d1667\">\n#top .av_textblock_section.av-m8g2eekt-b107f7410796bb625fa647253b1d1667 .avia_textblock{\nfont-size:18px;\n}\n<\/style>\n<section  class='av_textblock_section av-m8g2eekt-b107f7410796bb625fa647253b1d1667 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><section class=\"elementor-section elementor-top-section elementor-element elementor-element-016cded elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"016cded\" data-element_type=\"section\" data-settings=\"{\">\n<div class=\"elementor-container elementor-column-gap-default\">\n<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3545ea9\" data-id=\"3545ea9\" data-element_type=\"column\">\n<div class=\"elementor-widget-wrap elementor-element-populated\">\n<div class=\"elementor-element elementor-element-b8cc7f6 elementor-widget elementor-widget-text-editor\" data-id=\"b8cc7f6\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n<div class=\"elementor-widget-container\">\n<p>Virtual metrology may never be 100% perfect because of the almost unlimited number of changes in a fab tools and the unique chip and wafer designs they&#8217;re being used to process. But there are places where virtual metrology does make sense. Jon Herlocker, VP &amp; General Manager of Tignis, A Cohu Analytics Solution, talks with Semiconductor Engineering about why virtual metrology will never completely replace metrology tools in semiconductor fabs, where it has been used successfully, and what&#8217;s included and not included in data collected by sensors on those tools. This is the fourth video in a seven-part series on AI in semiconductor manufacturing.<\/p>\n<\/div>\n<div class=\"elementor-widget-container\"><\/div>\n<div class=\"elementor-widget-container\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div><\/section><\/p><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":67,"featured_media":47989,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[413],"tags":[],"class_list":["post-47987","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-thought-leadership"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Virtual Metrology In Semiconductor Manufacturing | cohu.com<\/title>\n<meta name=\"description\" content=\"Virtual metrology may never be 100% 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