Invention Grant
US09024355B2 Embedded planar source/drain stressors for a finFET including a plurality of fins
有权
用于包括多个翅片的finFET的嵌入式平面源极/漏极应力源
- Patent Title: Embedded planar source/drain stressors for a finFET including a plurality of fins
- Patent Title (中): 用于包括多个翅片的finFET的嵌入式平面源极/漏极应力源
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Application No.: US13483200Application Date: 2012-05-30
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Publication No.: US09024355B2Publication Date: 2015-05-05
- Inventor: Josephine B. Chang , Paul Chang , Michael A. Guillorn , Jeffrey W. Sleight
- Applicant: Josephine B. Chang , Paul Chang , Michael A. Guillorn , Jeffrey W. Sleight
- 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 Yuanmin Cal
- Main IPC: H01L21/02
- IPC: H01L21/02 ; H01L29/66 ; H01L29/78

Abstract:
Fin-defining mask structures are formed over a semiconductor material layer having a first semiconductor material and a disposable gate structure is formed thereupon. A gate spacer is formed around the disposable gate structure and physically exposed portions of the fin-defining mask structures are subsequently removed. The semiconductor material layer is recessed employing the disposable gate structure and the gate spacer as an etch mask to form recessed semiconductor material portions. Embedded planar source/drain stressors are formed on the recessed semiconductor material portions by selective deposition of a second semiconductor material having a different lattice constant than the first semiconductor material. After formation of a planarization dielectric layer, the disposable gate structure is removed. A plurality of semiconductor fins are formed employing the fin-defining mask structures as an etch mask. A replacement gate structure is formed on the plurality of semiconductor fins.
Public/Granted literature
- US20130320399A1 EMBEDDED PLANAR SOURCE/DRAIN STRESSORS FOR A FINFET INCLUDING A PLURALITY OF FINS Public/Granted day:2013-12-05
Information query
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