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Lubricating fluids for slicing silicon ingots

2021-04-01 来源:乌哈旅游
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专利名称:Lubricating fluids for slicing silicon ingots发明人:Charles C. Payne,Earnest M. Kerr申请号:US07/312012申请日:19890216公开号:US04853140A公开日:19890801

摘要:A lubricating composition for use in slicing or cutting silicon wafers. Thecomposition includes a soap, a phosphorous containing compound, and an ethyleneoxide-propylene oxide polymer. The phosphorous compound is a low temperature,extreme pressure lubricant. The ethylene oxide propylene oxide polymer is a hightemperature, extreme pressure lubricant. Suitable soaps include C6-C18 fatty acidsreacted with triethanolamine or aminoethanolamine. Additionally, biocides or fungicidesmay be added. Also an antifoam and a complexing aid such as EDTA may be used.

申请人:NALCO CHEMICAL COMPANY

代理人:John G. Premo,Anthony L. Cupoli,Donald G. Epple

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