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Stress Liner Proximity Technique to Enhance Carrier Mobility in High-κ Metal Gate MOSFETs

Published online by Cambridge University Press:  31 January 2011

Dechao Guo
Affiliation:
dguo@us.ibm.com, IBM T.J. Watson Research Center, Yorktown Heights, New York, United States
Kathryn Schonenberg
Affiliation:
kschonen@us.ibm.com, IBM Semiconductor Research and Development Center, Hopewell Junction, New York, United States
Jie Chen
Affiliation:
jchenj@us.ibm.com, Chartered Semiconductor Manufacturing, Hopewel Junction, New York, United States
Daniel Jaeger
Affiliation:
jaegerd@us.ibm.com, IBM Semiconductor Research and Development Center, Hopewell Junction, New York, United States
Pranita Kulkarni
Affiliation:
pranitakulkarni@us.ibm.com, IBM T.J.Watson Research Center, Yorktown Heights, New York, United States
Unoh Kwon
Affiliation:
ukwon@us.ibm.com, IBM Semiconductor Research and Development Center, Hopewell Junction, New York, United States
Yue Liang
Affiliation:
yueliang@us.ibm.com, IBM Semiconductor Research and Development Center, Hopewell Junction, New York, United States
Joyce Liu
Affiliation:
joyceliu@us.ibm.com, IBM Semiconductor Research and Development Center, Hopewell Junction, New York, United States
Liyang Song
Affiliation:
liyangso@us.ibm.com, IBM Semiconductor Research and Development Center, Hopewell Junction, New York, United States
Franck Arnaud
Affiliation:
frna@us.ibm.com, STMicroelectronics, Hopewell Junction, Hopewell Junction, New York, United States
Huiming Bu
Affiliation:
huiming@us.ibm.com, IBM T.J.Watson Research Center, Yorktown Heights, New York, United States
Michael Chudzik
Affiliation:
chudzik@us.ibm.com, IBM Semiconductor Research and Development Center, Hopewell Junction, New York, United States
William K Henson
Affiliation:
whenson@us.ibm.com, IBM Semiconductor Research and Development Center, Hopewell Junction, New York, United States
Philip J Oldiges
Affiliation:
poldiges@us.ibm.com, IBM Semiconductor Research and Development Center, Hopewell Junction, New York, United States
Melanie Sherony
Affiliation:
sherony@us.ibm.com, IBM Semiconductor Research and Development Center, Hopewell Junction, New York, United States
An Steegen
Affiliation:
steegen@us.ibm.com, IBM Semiconductor Research and Development Center, Hopewell Junction, New York, United States
Voon-Yew Thean
Affiliation:
vythean@us.ibm.com, IBM Semiconductor Research and Development Center, Hopewell Junction, New York, United States
Mukesh Khare
Affiliation:
kmukesh@us.ibm.com, IBM T.J.Watson Research Center, Yorktown Heights, New York, United States
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Abstract

For the first time, we discuss the compatibility of stress proximity technique (SPT) with dual stress liner (DSL) in high-κ/metal gate (HK/MG) technology. The short-channel mobility enhancement and the drive current improvement brought by SPT have been demonstrated at 32nm technology node. With maintained short channel control and threshold voltage roll-off characteristics, SPT has achieved 7% drive current improvement for both nFET and pFET from the optimization of SPT with DSL.

Type
Research Article
Copyright
Copyright © Materials Research Society 2010

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