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In modern semiconductor manufacturing facilities<\/strong>, even trace levels of metallic or organic contaminants<\/strong> in ancillary photochemical chemicals such as PGME\/PGMEA, TMAH, and nBA<\/strong> can have a direct impact on wafer yield, device performance, and equipment stability<\/strong>.<\/p>\n To ensure the delivery of ultra-high-purity chemicals<\/strong> for critical photolithography processes<\/strong>, Central Delivery Systems (CDS)<\/strong> and ancillary photochemical filters<\/strong> play a vital role in removing contaminants throughout the chemical distribution network.<\/p>\n However, many conventional filtration systems still face limitations in controlling extractables<\/strong>, which can lead to extended system startup times<\/strong> and reduced overall operational efficiency.<\/p>\n Entegris conducted an in-depth study on next-generation ancillary photochemical filters<\/strong> manufactured with UPE (Ultra-High Molecular Weight Polyethylene)<\/strong>, specifically designed for CDS applications in the semiconductor industry<\/strong>.<\/p>\n PGME\/PGMEA (7:3)<\/strong><\/p>\n<\/li>\n 2.38% TMAH (aqueous solution)<\/strong><\/p>\n<\/li>\n nBA<\/strong><\/p>\n<\/li>\n<\/ul>\n Four new filter designs were evaluated using static soak testing<\/strong> combined with ICP-MS and GC-FID analysis<\/strong> to quantify extractable metallic and organic contaminants<\/strong>. The tested filters included:<\/p>\n Microgard\u2122 UPE D01 and Nylon N01<\/strong> for PGME\/PGMEA<\/p>\n<\/li>\n Microgard\u2122 AT 2 nm Dry<\/strong> for nBA<\/p>\n<\/li>\n Microgard\u2122 AT 2 nm Prewet<\/strong> for 2.38% TMAH (aqueous)<\/p>\n<\/li>\n<\/ul>\n Each filter was benchmarked against a corresponding POR (Previous-On-Record) filter<\/strong>, demonstrating significant improvements in extractables control across all evaluated photochemical chemistries.<\/p>\n The evaluated next-generation photochemical filters showed substantial reductions in extractable metals and organic contaminants compared to POR filters, as summarized below:<\/p>\n These results confirm that next-generation ancillary photochemical filters<\/strong> not only enhance chemical purity<\/strong>, but also significantly reduce CDS startup time<\/strong>, a critical advantage for high-volume semiconductor manufacturing.<\/p>\n As the semiconductor industry advances toward sub-3 nm technology nodes<\/strong>, requirements for photochemical purity<\/strong>continue to become more stringent. Implementing high-performance ancillary photochemical filtration solutions<\/strong>enables manufacturers to:<\/p>\n Filterfine Vietnam<\/strong> provides professional consulting and supply of advanced filtration solutions, including:<\/p>\n \ud83d\udce9 Contact Filterfine Vietnam<\/strong> today to receive expert consultation on photochemical filtration solutions<\/strong> that enhance manufacturing efficiency and meet advanced semiconductor standards.<\/p>\n <\/p>","protected":false},"excerpt":{"rendered":"Next-Generation Ancillary Photochemical Filters \u2013 Research & Evaluation<\/strong><\/h2>\n
Photochemical Solutions Evaluated<\/strong><\/h3>\n
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Outstanding Results in Photochemical Contaminant Control<\/strong><\/h2>\n
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\n \nPhotochemical<\/th>\n Evaluated Filter<\/th>\n POR Filter<\/th>\n Reduction in Metal Extractables<\/th>\n Reduction in Organic Extractables<\/th>\n<\/tr>\n<\/thead>\n \n PGME\/PGMEA<\/td>\n UPE D01<\/td>\n UPE<\/td>\n 60%<\/td>\n 70%<\/td>\n<\/tr>\n \n PGME\/PGMEA<\/td>\n Nylon N01<\/td>\n Nylon<\/td>\n 70%<\/td>\n 50%<\/td>\n<\/tr>\n \n nBA<\/td>\n Microgard AT 2 nm Dry<\/td>\n PTFE A<\/td>\n 50%<\/td>\n 40%<\/td>\n<\/tr>\n \n 2.38% TMAH (aq)<\/td>\n Microgard AT 2 nm Prewet<\/td>\n PTFE B<\/td>\n 90%<\/td>\n N\/A<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n Impact on Semiconductor Manufacturing and Industrial Filtration Applications<\/strong><\/h2>\n
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