Patent ID: 6905921
Filing Date: 2005-06-14
Classification: H01L

Abstract:
1. A method for fabricating a device on a substrate, comprising: forming first and second isolation regions in said substrate, said first isolation region bordering a first side of an active area of the device and said second isolation region bordering a second side of said active area opposite said first side; forming a gate over said substrate, said gate extending between said first and second sides of said active area; forming a source/drain extension region in said substrate on each side of said gate, said source/drain extension regions extending between said first and second sides of the active area and including dopants of a first conductivity type; forming first and second corner diffusion regions in said substrate, said corner diffusion regions including dopants of a second conductivity type that is opposite to said first conductivity type and overlapping with a first source/drain extension region in areas of said substrate adjacent said first and second isolation regions; and forming source and drain diffusion regions in said substrate adjacent said source/drain extension regions on opposite sides of said gate and extending between said first and second sides of said active area, said source and drain diffusion regions being further away from said gate than said source/drain extension regions and including dopants of said first conductivity type.