Invention Grant
- Patent Title: Methods for full gate silicidation of metal gate structures
- Patent Title (中): 金属门结构的全栅极硅化方法
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Application No.: US11965024Application Date: 2007-12-27
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Publication No.: US07863192B2Publication Date: 2011-01-04
- Inventor: Aaron Frank , David Gonzalez, Jr. , Mark R. Visokay , Clint Montgomery
- Applicant: Aaron Frank , David Gonzalez, Jr. , Mark R. Visokay , Clint Montgomery
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Warren L. Franz; Wade J. Brady, III; Frederick J. Telecky, Jr.
- Main IPC: H01L21/44
- IPC: H01L21/44

Abstract:
One embodiment relates to a method of fabricating an integrated circuit. In the method, p-type polysilicon is provided over a semiconductor body, where the p-type polysilicon has a first depth as measured from a top surface of the p-type polysilicon. An n-type dopant is implanted into the p-type polysilicon to form a counter-doped layer at the top-surface of the p-type polysilicon, where the counter-doped layer has a second depth that is less than the first depth. A catalyst metal is provided that associates with the counter-doped layer to form a catalytic surface. A metal is deposited over the catalytic surface. A thermal process is performed that reacts the metal with the p-type polysilicon in the presence of the catalytic surface to form a metal silicide. Other methods and devices are also disclosed.
Public/Granted literature
- US20090170258A1 METHODS FOR FULL GATE SILICIDATION OF METAL GATE STRUCTURES Public/Granted day:2009-07-02
Information query
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