Semiconductor device including MISFET having internal stress...

Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode

Reexamination Certificate

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Reexamination Certificate

active

07893501

ABSTRACT:
A semiconductor device includes a first-type internal stress film formed of a silicon oxide film over source/drain regions of an nMISFET and a second-type internal stress film formed of a TEOS film over source/drain regions of a pMISFET. In a channel region of the nMISFET, a tensile stress is generated in the direction of movement of electrons due to the first-type internal stress film, so that the mobility of electrons is increased. In a channel region of the pMISFET, a compressive stress is generated in the direction of movement of holes due to the second-type internal stress film, so that the mobility of holes is increased.

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Japanese Office Action, with English translation, issued in Japanese Patent Application No. 2003-170335, mailed Dec. 22, 2009.
Japanese Office Action, with English translation, issued in Japanese Patent Application No. 2003-170335, mailed Mar. 23, 2010.

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