Invention Grant
- Patent Title: Dual silicide regions and method for forming the same
- Patent Title (中): 双硅化物区域及其形成方法
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Application No.: US14166976Application Date: 2014-01-29
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Publication No.: US09177810B2Publication Date: 2015-11-03
- Inventor: Veeraraghavan S. Basker , Zuoguang Liu , Tenko Yamashita , Chun-Chen Yeh
- 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: Tutunjian & Bitetto, P.C.
- Agent Vazken Alexanian
- Main IPC: H01L21/31
- IPC: H01L21/31 ; H01L21/469 ; H01L21/283 ; H01L29/45 ; H01L21/02

Abstract:
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.
Public/Granted literature
- US20150214058A1 DUAL SILICIDE REGIONS AND METHOD FOR FORMING THE SAME Public/Granted day:2015-07-30
Information query
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