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公开(公告)号:US20140242761A1
公开(公告)日:2014-08-28
申请号:US14267954
申请日:2014-05-02
发明人: King-Yuen WONG , Chen-Ju YU , Fu-Wei YAO , Jiun-Lei Jerry YU , Fu-Chih YANG , Po-Chih CHEN , Chun-Wei HSU
IPC分类号: H01L29/66
CPC分类号: H01L29/66462 , H01L21/0254 , H01L27/14689 , H01L29/1033 , H01L29/1608 , H01L29/2003 , H01L29/42364 , H01L29/7787
摘要: A method of forming a semiconductor structure, the method includes epitaxially growing a second III-V compound layer on a first III-V compound layer. A carrier channel is located between the first III-V compound layer and the second III-V compound layer. The method further includes forming a source feature and a drain feature on the second III-V compound layer, forming a third III-V compound layer on the second III-V compound layer, depositing a gate dielectric layer on a portion of the second III-V compound layer and a top surface of the third III-V compound layer, treating the gate dielectric layer on the portion of the second III-V compound layer with fluorine and forming a gate electrode on the treated gate dielectric layer between the source feature and the drain feature.
摘要翻译: 一种形成半导体结构的方法,所述方法包括在第一III-V化合物层上外延生长第二III-V化合物层。 载体通道位于第一III-V化合物层和第二III-V化合物层之间。 该方法还包括在第二III-V化合物层上形成源特征和漏极特征,在第二III-V化合物层上形成第三III-V化合物层,在第二III -V化合物层和第三III-V化合物层的顶表面,用氟处理第二III-V化合物层的部分上的栅极电介质层,并在处理的栅极电介质层上在源特征 和排水功能。