Patent ID: 7504704

Claim:
A structure comprising: a first transistor disposed over a first region of a substrate, the first transistor including: a first source region and a first drain region disposed in a first portion of the substrate, a first channel region disposed between the first source region and the first drain region, at least a portion of the first channel region located in a strained layer disposed over the substrate and lattice-mismatched to a proximate material inducing a first type of strain in the strained layer, the first channel region having the first type of strain, and a first gate disposed above the first channel region and between the first source and first drain regions, the first gate comprising a conductive material; and a first trench structure disposed in a trench, wherein the trench is proximate at least one side of one of the first source region and the first drain region, the first trench structure inducing a portion of the first type of strain in the first channel region.