Invention Grant
- Patent Title: Full silicidation prevention via dual nickel deposition approach
- Patent Title (中): 通过双镍沉积法实现全硅化防止
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Application No.: US13204283Application Date: 2011-08-05
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Publication No.: US08524564B2Publication Date: 2013-09-03
- Inventor: Peter Javorka , Stefan Flachowsky , Thilo Scheiper
- Applicant: Peter Javorka , Stefan Flachowsky , Thilo Scheiper
- Applicant Address: KY Grand Cayman
- Assignee: GLOBALFOUNDRIES Inc.
- Current Assignee: GLOBALFOUNDRIES Inc.
- Current Assignee Address: KY Grand Cayman
- Agency: Ditthavong Mori & Steiner, P.C.
- Main IPC: H01L31/119
- IPC: H01L31/119

Abstract:
Semiconductor devices are formed without full silicidation of the gates and with independent adjustment of silicides in the gates and source/drain regions. Embodiments include forming a gate on a substrate, forming a nitride cap on the gate, forming a source/drain region on each side of the gate, forming a first silicide in each source/drain region, removing the nitride cap subsequent to the formation of the first silicide, and forming a second silicide in the source/drain regions and in the gate, subsequent to removing the nitride cap. Embodiments include forming the first silicide by forming a first metal layer on the source/drain regions and performing a first RTA, and forming the second silicide by forming a second metal layer on the source/drain regions and on the gate and performing a second RTA.
Public/Granted literature
- US20130032901A1 FULL SILICIDATION PREVENTION VIA DUAL NICKEL DEPOSITION APPROACH Public/Granted day:2013-02-07
Information query
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