Patent ID: 7372108

Claim:
A semiconductor device comprising: a first semiconductor element device; and a second semiconductor element device, the first semiconductor element device comprising: a first gate electrode formed on a semiconductor substrate through an insulator; a pair of first diffusion layers formed in the semiconductor substrate with the first gate electrode therebetween; and a first conductor layer formed in the first diffusion layer and having an internal stress in a first direction, and the second semiconductor element device including: a second gate electrode formed on the semiconductor substrate through an insulator; a pair of second diffusion layers formed in the semiconductor substrate with the second gate electrode therebetween; and a second conductor layer formed in the second diffusion layer, having an internal stress in a second direction opposite to the first direction, and constituted of the same element as that of the first conductor layer, wherein the internal stress in one of the first and second conductor layers is a stress frozen in the conductor layer by an annealing, having the same direction as an internal stress of a stress control film, and having an opposite direction to an original internal stress of the conductor layer.