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How Piranha Etch is Used in Silicon Wafer Cleaning


Editor’s Note: This article was originally published in December 2016 and has been updated with additional information and reposted in March 2023. Silicon wafers are fabricated with repeated etching and cleaning steps to produce the micro-structures required for the final silicon semiconductor products. Piranha or SPM (sulfuric peroxide mix) solutions can clean organic material from […]