Patent ID: 8569845

Claim:
A microelectronic device, comprising: a gate structure overlying a semiconductor substrate and for selectively operating a strained p-channel in the semiconductor substrate; and source and drain regions, each comprising: a first doped region located adjacent to the channel and extending a first depth into the semiconductor substrate from a top surface of the semiconductor substrate, a second doped region located adjacent to the first doped region and adjacent to the channel and extending into the semiconductor substrate a second greater than the first depth, a third doped region located adjacent to the second doped region and adjacent to the channel and extending into the semiconductor substrate from the top surface thereof a third depth greater than the second depth, a contact formed within the third doped region and adjacent the second doped region, wherein no portion of the first, second, and third doped regions lies within the channel, wherein the third doped region includes one of SiGe and SiC and the first and second doped regions are free of SiGe and SiC; a clamping layer surrounding at least a portion of the gate structure and over the second doped region; an L-shaped dielectric liner having a first portion physically contacting a sidewall of a gate electrode of the gate structure and a second portion extending over the second doped region, wherein the sidewall of the gate electrode extends along an axis that is substantially perpendicular the top surface of the semiconductor substrate; and a relatively thin spacer extending over the first doped region and having a first side abutting the first portion of the liner and a second side abutting the second portion of the liner, wherein a length of the second portion of the liner is greater than a width of the second side of the spacer such that the second portion of the liner extends further over the second doped region than does the second side of the spacer, wherein the clamping layer extends further over the second doped region away from the gate structure than does the second portion of the liner.