Patent ID: 7687864

Claim:
A semiconductor integrated circuit device, comprising: a second cell, including: a well formed in a substrate; a converted tap converted from a tap of a first cell in a cell library; and a source diffusion region of an active element formed in said well, a conductivity type of said converted tap being identical with that of said source diffusion region; and wherein the conductivity type of the converted tap is identical with a conductivity type of a source diffusion region of the first cell, said first cell including: a well formed in a substrate; the tap for supplying a potential of said well of the first cell; and the source diffusion region of the first cell comprising an active element formed in said well of the first cell and having a conductivity type opposite that of said well of the first cell, wherein, within the second cell, an impurity diffusion region that constitutes said converted tap extends to said source diffusion region of the second cell to electrically connect the converted tap to at least a portion of said source diffusion region of the second cell.