- 专利标题: MOSFETs with reduced contact resistance
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申请号: US13770545申请日: 2013-02-19
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公开(公告)号: US09356119B2公开(公告)日: 2016-05-31
- 发明人: Bruce B. Doris , Kangguo Cheng , Ali Khakifirooz , Pranita Kerber
- 申请人: GLOBALFOUNDRIES INC.
- 申请人地址: KY Grand Cayman
- 专利权人: GLOBALFOUNDRIES INC.
- 当前专利权人: GLOBALFOUNDRIES INC.
- 当前专利权人地址: KY Grand Cayman
- 代理机构: Scully, Scott, Murphy & Presser, P.C.
- 主分类号: H01L29/66
- IPC分类号: H01L29/66 ; H01L21/285 ; H01L29/08 ; H01L29/417 ; H01L29/45 ; H01L23/485 ; H01L29/165
摘要:
A method and structure for forming a field effect transistor with reduced contact resistance are provided. The reduced contact resistance is manifested by a reduced metal semiconductor alloy contact resistance and a reduced conductively filled via contact-to-metal semiconductor alloy contact resistance. The reduced contact resistance is achieved in this disclosure by texturing the surface of the transistor's source region and/or the transistor's drain region. Typically, both the source region and the drain region are textured in the present disclosure. The textured source region and/or the textured drain region have an increased area as compared to a conventional transistor that includes a flat source region and/or a flat drain region. A metal semiconductor alloy, e.g., a silicide, is formed on the textured surface of the source region and/or the textured surface of the drain region. A conductively filled via contact is formed atop the metal semiconductor alloy.
公开/授权文献
- US20130157423A1 MOSFETs WITH REDUCED CONTACT RESISTANCE 公开/授权日:2013-06-20
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