{"id":1386,"date":"0021-12-29T13:36:22","date_gmt":"0021-12-29T13:36:22","guid":{"rendered":"https:\/\/novanta.com\/precision-manufacturing\/?post_type=novanta_tech_paper&#038;p=1386"},"modified":"2026-06-26T13:34:16","modified_gmt":"2026-06-26T13:34:16","slug":"highly-accurate-particle-measuring-using-lasers","status":"publish","type":"novanta_tech_paper","link":"https:\/\/novanta.com\/precision-manufacturing\/resources\/whitepapers\/highly-accurate-particle-measuring-using-lasers\/","title":{"rendered":"Highly Accurate Particle Measuring Using Lasers"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\" id=\"h-technical-paper-overview\">Technical Paper Overview<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-highly-accurate-particle-measuring-with-lasers\"><strong>Highly Accurate Particle Measuring with Lasers<\/strong><\/h3>\n\n\n\n<p><em>Beam stability, not raw power, decides particle-counter false positives.<\/em><\/p>\n\n\n\n<p>In semiconductor wafer fabrication, the purity of chemical, cooling, and cleaning fluids isn&#8217;t a nice-to-have \u2014 it&#8217;s the difference between yield and scrap. A missed contaminant produces a wafer defect; a false-positive triggers an unnecessary line shutdown. The laser inside each particle counter determines whether the system errs toward yield loss or production stoppage.<\/p>\n\n\n\n<p>This technical paper from Laser Quantum (a Novanta brand) explains how particle counting works inside semiconductor fluid-purity instruments \u2014 laser beam through flow cell, particle-diffracted light captured by a CCD or photodiode array around a central beam dump \u2014 and why the gem 532 nm and opus 532 nm lasers (M\u00b2 near 1, stable pointing, low noise, air-cooled) reduce false positives in 24\/7 deployment.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-key-takeaways-include\">Key takeaways include:<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Why beam pointing accuracy and low noise \u2014 not raw power \u2014 determine false-positive rate in liquid particle counters<\/li>\n\n\n\n<li>How particle-diffracted light into a CCD or photodiode array maps to particle size and count<\/li>\n\n\n\n<li>When air-cooled lasers become essential: semiconductor fab environments where water cooling isn&#8217;t permitted or feasible<\/li>\n\n\n\n<li>What the gem 532 nm and opus 532 nm lasers deliver: M\u00b2 near 1, integrated power feedback, patented cavity technology<\/li>\n\n\n\n<li>A practical integration framework: small form factor, high wall-plug efficiency, 24\/7 long-lifetime reliability<\/li>\n<\/ul>\n\n\n\n<p>Download the full technical paper for the particle-counting optical schematic, the laser-spec rationale behind reducing false positives in semiconductor fluid purity testing, and the integration features (air cooling, integrated power feedback, small form factor) that decide whether a particle counter survives the production floor or becomes a maintenance liability.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Technical Paper Overview Highly Accurate Particle Measuring with Lasers Beam stability, not raw power, decides particle-counter false positives. In semiconductor wafer fabrication, the purity of chemical, cooling, and cleaning fluids isn&#8217;t a nice-to-have \u2014 it&#8217;s the difference between yield and scrap. A missed contaminant produces a wafer defect; a false-positive triggers an unnecessary line shutdown. [&hellip;]<\/p>\n","protected":false},"author":342,"featured_media":4439,"template":"","meta":{"_acf_changed":false,"show_table_of_content":true},"class_list":["post-1386","novanta_tech_paper","type-novanta_tech_paper","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.0 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Highly Accurate Particle Measuring Using Lasers - Precision Manufacturing<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/novanta.com\/precision-manufacturing\/resources\/whitepapers\/highly-accurate-particle-measuring-using-lasers\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Highly Accurate Particle Measuring Using Lasers\" \/>\n<meta property=\"og:description\" content=\"Technical Paper Overview Highly Accurate Particle Measuring with Lasers Beam stability, not raw power, decides particle-counter false positives. In semiconductor wafer fabrication, the purity of chemical, cooling, and cleaning fluids isn&#8217;t a nice-to-have \u2014 it&#8217;s the difference between yield and scrap. A missed contaminant produces a wafer defect; a false-positive triggers an unnecessary line shutdown. 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