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发明名称
具有逆碳分布之低缺陷SI:C层
摘要
形成替代碳单晶矽层时经常产生许多缺陷,尤其在高碳浓度时。本发明提供用于提供低缺陷替代碳单晶矽层的结构与方法,甚至可用于具有高浓度碳的矽。根据本发明,在碳植入中的主动式逆分布会减少在固相磊晶以后所得到之替代碳单晶矽层中的缺陷密度。这会致使形成具有压缩应力与低缺陷密度之半导体结构。当应用在半导体电晶体时,本发明会致使N型场效电晶体经由存在于通道内的拉张应力来提高电子迁移率。
申请公布号
TW200840040
申请公布日期
2008.10.01
申请号
TW096145556
申请日期
2007.11.30
申请人
万国商业机器公司
发明人
刘耀诚;舒博曼尼恩S 伊尔;李景红
分类号
H01L29/161(2006.01)
主分类号
H01L29/161(2006.01)
代理机构
代理人
蔡玉玲
主权项
地址
美国
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