发明授权
- 专利标题: Dual silicide regions and method for forming the same
- 专利标题(中): 双硅化物区域及其形成方法
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申请号: US14166976申请日: 2014-01-29
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公开(公告)号: US09177810B2公开(公告)日: 2015-11-03
- 发明人: Veeraraghavan S. Basker , Zuoguang Liu , Tenko Yamashita , Chun-Chen Yeh
- 申请人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 申请人地址: US NY Armonk
- 专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人地址: US NY Armonk
- 代理机构: Tutunjian & Bitetto, P.C.
- 代理商 Vazken Alexanian
- 主分类号: H01L21/31
- IPC分类号: H01L21/31 ; H01L21/469 ; H01L21/283 ; H01L29/45 ; H01L21/02
摘要:
A method for forming dual silicide regions includes forming semiconductor regions having a first thickness and a second thickness different from the first thickness and forming a dielectric layer over the semiconductor regions. Holes are opened up in the dielectric layer down to a first depth corresponding with the first or second thickness leaving a thickness of the dielectric layer over the other of the first or second thickness. A first silicide is formed at the first depth in the holes using a first deposited material. The holes are extended through the thickness of the dielectric layer to reach a second depth. A second silicide is formed at the second depth in the holes using a different material than the first deposited material.
公开/授权文献
- US20150214058A1 DUAL SILICIDE REGIONS AND METHOD FOR FORMING THE SAME 公开/授权日:2015-07-30
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