Semiconductor device manufacturing: process – Making field effect device having pair of active regions... – Having insulated gate
Reexamination Certificate
2007-12-25
2007-12-25
Picardat, Kevin M. (Department: 2822)
Semiconductor device manufacturing: process
Making field effect device having pair of active regions...
Having insulated gate
C438S231000
Reexamination Certificate
active
11399877
ABSTRACT:
A method of forming a source/drain region of a semiconductor device includes forming a photoresist pattern through which an NMOS region of a semiconductor substrate is exposed, and then performing an ion implant process to form NMOS LDD regions in the semiconductor substrate of the NMOS region. An ion implant process is performed to form PMOS pocket regions in a PMOS region of the semiconductor substrate. Spacers are formed on sidewalls of a PMOS gate electrode pattern and sidewalls of an NMOS gate electrode pattern, and an ion implant process is performed to form PMOS source/drain regions in the semiconductor substrate in which the PMOS pocket regions are formed. An ion implant process is performed to form NMOS source/drain regions in the semiconductor substrate in which the NMOS LDD regions are formed.
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Hynix Semiconductors Inc.
Picardat Kevin M.
Prasad Neil
Townsend and Townsend / and Crew LLP
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