Invention Grant
- Patent Title: Integrated circuit having a replacement gate structure and method for fabricating the same
- Patent Title (中): 具有替代栅极结构的集成电路及其制造方法
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Application No.: US13562659Application Date: 2012-07-31
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Publication No.: US08735272B2Publication Date: 2014-05-27
- Inventor: Xiuyu Cai , Ruilong Xie , Kangguo Cheng , Ali Khakifirooz
- Applicant: Xiuyu Cai , Ruilong Xie , Kangguo Cheng , Ali Khakifirooz
- Applicant Address: KY Grand Cayman US NY Armonk
- Assignee: Globalfoundries, Inc.,International Business Machines
- Current Assignee: Globalfoundries, Inc.,International Business Machines
- Current Assignee Address: KY Grand Cayman US NY Armonk
- Agency: Ingrassia Fisher & Lorenz, P.C.
- Main IPC: H01L21/4763
- IPC: H01L21/4763

Abstract:
A method for fabricating an integrated circuit includes forming a temporary gate structure on a semiconductor substrate. The temporary gate structure includes a temporary gate material disposed between two spacer structures. The method further includes forming a first directional silicon nitride liner overlying the temporary gate structure and the semiconductor substrate, etching the first directional silicon nitride liner overlying the temporary gate structure and the temporary gate material to form a trench between the spacer structures, while leaving the directional silicon nitride liner overlying the semiconductor substrate in place, and forming a replacement metal gate structure in the trench. An integrated circuit includes a replacement metal gate structure overlying a semiconductor substrate, a silicide region overlying the semiconductor substrate and positioned adjacent the replacement gate structure; a directional silicon nitride liner overlying a portion of the replacement gate structure; and a contact plug in electrical communication with the silicide region.
Public/Granted literature
- US20140035010A1 INTEGRATED CIRCUIT HAVING A REPLACEMENT GATE STRUCTURE AND METHOD FOR FABRICATING THE SAME Public/Granted day:2014-02-06
Information query
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