Patent ID: 6974998

Claim:
A device built on a substrate, comprising: isolation regions formed in said substrate, including a first isolation region bordering a first side of an active area of the device and a second isolation region bordering a second side of said active area opposite to said first side; a gate over said substrate and extending between said first and second sides of said active area; a source diffusion region and a drain diffusion region in said substrate on opposite sides of said gate and extending between said first and second sides of said active area; a first source/drain extension region in said substrate between said gate and said source diffusion region and extending between said first and second sides of said active area; a second source/drain extension region in said substrate between said gate and said drain diffusion region and extending between said first and second sides of said active area; and first and second corner diffusion regions in said substrate, said first and second corner diffusion regions overlapping with said second source/drain extension region in areas of said substrate adjacent said first and second isolation regions; and wherein said second source/drain extension region includes dopants of a first conductivity type and said corner diffusion regions include dopants of a second conductivity type that is opposite to said first conductivity type.