Invention Grant
US09559202B2 Method for forming metal semiconductor alloys in contact holes and trenches
有权
在接触孔和沟槽中形成金属半导体合金的方法
- Patent Title: Method for forming metal semiconductor alloys in contact holes and trenches
- Patent Title (中): 在接触孔和沟槽中形成金属半导体合金的方法
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Application No.: US14524650Application Date: 2014-10-27
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Publication No.: US09559202B2Publication Date: 2017-01-31
- Inventor: Christian Lavoie , Zhengwen Li , Ahmet S. Ozcan , Filippos Papadatos , Chengwen Pei , Jian Yu
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Scully, Scott, Murphy & Presser, P.C.
- Agent Steven J. Meyers
- Main IPC: H01L21/02
- IPC: H01L21/02 ; H01L21/285 ; H01L21/311 ; H01L21/336 ; H01L21/768 ; H01L29/66 ; H01L29/78 ; H01L29/45 ; H01L29/49 ; H01L21/3205 ; H01L21/321 ; H01L21/3213

Abstract:
A semiconductor device is provided that includes a gate structure on a channel region of a substrate. A source region and a drain region are present on opposing sides of the channel region. A first metal semiconductor alloy is present on an upper surface of at least one of the source and drain regions. The first metal semiconductor alloy extends to a sidewall of the gate structure. A dielectric layer is present over the gate structure and the first metal semiconductor alloy. An opening is present through the dielectric layer to a portion of the first metal semiconductor alloy that is separated from the gate structure. A second metal semiconductor alloy is present in the opening, is in direct contact with the first metal semiconductor alloy, and has an upper surface that is vertically offset and is located above the upper surface of the first metal semiconductor alloy.
Public/Granted literature
- US20150044845A1 METHOD FOR FORMING METAL SEMICONDUCTOR ALLOYS IN CONTACT HOLES AND TRENCHES Public/Granted day:2015-02-12
Information query
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