Invention Grant
US08148221B2 Double anneal with improved reliability for dual contact etch stop liner scheme
有权
双重退火,具有改进的双接触蚀刻停止衬垫方案的可靠性
- Patent Title: Double anneal with improved reliability for dual contact etch stop liner scheme
- Patent Title (中): 双重退火,具有改进的双接触蚀刻停止衬垫方案的可靠性
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Application No.: US12581207Application Date: 2009-10-19
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Publication No.: US08148221B2Publication Date: 2012-04-03
- Inventor: Khee Yong Lim , Victor Chan , Eng Hua Lim , Wenhe Lin , Jamin F. Fen
- Applicant: Khee Yong Lim , Victor Chan , Eng Hua Lim , Wenhe Lin , Jamin F. Fen
- Applicant Address: SG Singapore
- Assignee: International Business Machines Corporation,GLOBALFOUNDRIES Singapore Pte. Ltd.
- Current Assignee: International Business Machines Corporation,GLOBALFOUNDRIES Singapore Pte. Ltd.
- Current Assignee Address: SG Singapore
- Agency: Horizon IP Pte Ltd
- Main IPC: H01L21/336
- IPC: H01L21/336 ; H01L21/8234

Abstract:
A method for forming a device with both PFET and NFET transistors using a PFET compressive etch stop liner and a NFET tensile etch stop liner and two anneals in a deuterium containing atmosphere. The method comprises: providing a NFET transistor in a NFET region and a PFET transistor in a PFET region. We form a NFET tensile contact etch-stop liner over the NFET region. Then we perform a first deuterium anneal. We form a PFET compressive etch stop liner over the PFET region. We form a (ILD) dielectric layer with contact openings over the substrate. We perform a second deuterium anneal. The temperature of the second deuterium anneal is less than the temperature of the first deuterium anneal.
Public/Granted literature
- US20100041242A1 Double Anneal with Improved Reliability for Dual Contact Etch Stop Liner Scheme Public/Granted day:2010-02-18
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