| 摘要 |
A p-channel MOS transistor includes a gate electrode formed on a silicon substrate in correspondence to a channel region therein via a gate insulation film, the gate electrode carrying sidewall insulation films on respective sidewall surfaces thereof, and source and drain regions of p-type are formed in the substrate at respective outer sides of the sidewall insulation films, wherein each of the source and drain regions encloses a polycrystal region of p-type accumulating therein a compressive stress.
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