Methods for fabricating MOS devices having highly stressed...

Semiconductor device manufacturing: process – Making field effect device having pair of active regions... – Having insulated gate

Reexamination Certificate

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C438S269000, C438S369000, C257S288000, C257S369000

Reexamination Certificate

active

08076209

ABSTRACT:
Methods for forming a semiconductor device comprising a silicon-comprising substrate are provided. One exemplary method comprises depositing a polysilicon layer overlying the silicon-comprising substrate, amorphizing the polysilicon layer, etching the amorphized polysilicon layer to form a gate electrode, etching recesses into the substrate using the gate electrode as an etch mask, depositing a stress-inducing layer overlying the gate electrode, annealing the silicon-comprising substrate to recrystallize the gate electrode, removing the stress-inducing layer, and epitaxially growing impurity-doped, silicon-comprising regions in the recesses.

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International Search Report for PCT/US2009/058629 mailed Feb. 22, 2010.

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