Research on Acid Etching Wafer With the High Glossiness

Research on Acid Etching Wafer With the High Glossiness

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In order to improve the glossiness of acid etched wafer and achieve stable mass production, by optimizing process of producing silicon wafer, rotate and grind 1980 corvette tail lights the wafer to be double-sided grinding wafer, then acid etch the wafer.The glossiness of acid etched wafer reached jumbo glory double wall 2li bardak 250 ml more than 360 Gu (re fl ectivity greater than 98%) and the service life of etchant was extended to 50 000 wafers.The application field of acid etching wafer was expanded, the processing cost of products was reduced and the processing efficiency of products was improved.