Invention Grant
US08455313B1 Method for fabricating finFET with merged fins and vertical silicide
有权
使用合并翅片和垂直硅化物制造finFET的方法
- Patent Title: Method for fabricating finFET with merged fins and vertical silicide
- Patent Title (中): 使用合并翅片和垂直硅化物制造finFET的方法
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Application No.: US13617709Application Date: 2012-09-14
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Publication No.: US08455313B1Publication Date: 2013-06-04
- Inventor: Veeraraghavan S. Basker , Andres Bryant , Huiming Bu , Wilfried Haensch , Effendi Leobandung , Chung-Hsun Lin , Theodorus E. Standaert , Tenko Yamashita , Chun-chen Yeh
- Applicant: Veeraraghavan S. Basker , Andres Bryant , Huiming Bu , Wilfried Haensch , Effendi Leobandung , Chung-Hsun Lin , Theodorus E. Standaert , Tenko Yamashita , Chun-chen Yeh
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Fleit Gibbons Gutman Bongini & Bianco PL
- Agent Stephen Bongini
- Main IPC: H01L21/336
- IPC: H01L21/336

Abstract:
A method is provided for fabricating a finFET device. Fin structures are formed over a BOX layer. The fin structures include a semiconductor layer and extend in a first direction. A gate stack is formed on the BOX layer over the fin structures and extending in a second direction. The gate stack includes a high-K dielectric layer and a metal gate. Gate spacers are formed on sidewalls of the gate stack, and an epi layer is deposited to merge the fin structures. Ions are implanted to form source and drain regions, and dummy spacers are formed on sidewalls of the gate spacers. The dummy spacers are used as a mask to recess or completely remove an exposed portion of the epi layer. Silicidation forms silicide regions that abut the source and drain regions and each include a vertical portion located on the vertical sidewall of the source or drain region.
Public/Granted literature
- US20130164890A1 METHOD FOR FABRICATING FINFET WITH MERGED FINS AND VERTICAL SILICIDE Public/Granted day:2013-06-27
Information query
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