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公开(公告)号:US07737051B2
公开(公告)日:2010-06-15
申请号:US10797876
申请日:2004-03-10
申请人: Anthony Dip , Pradip K. Roy , Sanjeev Kaushal , Allen J. Leith , Seungho Oh , Raymond Joe
发明人: Anthony Dip , Pradip K. Roy , Sanjeev Kaushal , Allen J. Leith , Seungho Oh , Raymond Joe
IPC分类号: H01L21/36
CPC分类号: H01L21/31604 , H01L21/02142 , H01L21/0217 , H01L21/02175 , H01L21/02318 , H01L21/02323 , H01L21/02337 , H01L21/02362 , H01L21/31637 , H01L21/31641 , H01L21/31645 , H01L21/3185 , Y10T29/41
摘要: A method for using a silicon germanium (SiGe) surface layer to integrate a high-k dielectric layer into a semiconductor device. The method forms a SiGe surface layer on a substrate and deposits a high-k dielectric layer on the SiGe surface layer. An oxide layer, located between the high-k dielectric layer and an unreacted portion of the SiGe surface layer, is formed during one or both of deposition of the high-k dielectric layer and an annealing process after deposition of the high-k dielectric layer. The method further includes forming an electrode layer on the high-k dielectric layer.
摘要翻译: 一种使用硅锗(SiGe)表面层将高k电介质层集成到半导体器件中的方法。 该方法在衬底上形成SiGe表面层,并在SiGe表面层上沉积高k电介质层。 在高k电介质层的沉积和沉积高k电介质层之间的退火工艺中的一个或两个期间,形成位于高k电介质层和SiGe表面层的未反应部分之间的氧化物层 。 该方法还包括在高k电介质层上形成电极层。