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公开(公告)号:US07754585B2
公开(公告)日:2010-07-13
申请号:US10433314
申请日:2001-12-21
IPC分类号: H01L21/322
CPC分类号: H01L21/324 , H01L21/3225 , H01L29/66477 , H01L29/66507
摘要: A method of subjecting a silicon wafer doped with boron to a heat treatment in an argon atmosphere, wherein the argon atmosphere is replaced with a hydrogen atmosphere or a mixed gas of an argon gas and a hydrogen gas in a proper fashion, to thereby uniformize a boron concentration in the thickness direction of the surface layer of the silicon wafer doped with boron.
摘要翻译: 在氩气气氛中对掺杂有硼的硅晶片进行热处理的方法,其中氩气氛以氢气氛或氩气和氢气的混合气体以适当的方式代替,从而使 在掺杂硼的硅晶片的表面层的厚度方向上的硼浓度。