Patent ID: 9337099
Filing Date: 2016-05-10
CPC Classification: H01L

Claim Text:
1. A method comprising: abutting a first cell having a first drain diffusion region and a first source diffusion region and a second cell having a second drain diffusion region and a second source diffusion region, the first diffusion regions being smaller than the second diffusion regions, by: forming a dummy gate at a boundary between the first and second cells; forming a continuous drain diffusion region having an upper portion crossing the dummy gate and encompassing the entire first drain diffusion region and part of the second drain diffusion region and having a lower portion beginning over the dummy gate and encompassing a remainder of the second drain diffusion region; forming a continuous source diffusion region having a lower portion crossing the dummy gate and encompassing the entire first source diffusion region and part of the second source diffusion region and having an upper portion beginning over the dummy gate and encompassing a remainder of the second source diffusion region; and forming a poly-cut mask over the dummy gate between, but separated from, the continuous drain diffusion region and the continuous source diffusion region.