Patent ID: 6690073
Filing Date: 2004-02-10
Classification: H01L

Abstract:
A semiconductor integrated circuit including a plurality of standard cells which are arranged adjacent to each other in a cell row and comprising a plurality of MOS transistors, each standard cell of said cell row being provided with at least one first contact region through which at least one of said MOS transistors is electrically connected to a power potential, at least one second contact region through which at least one of said MOS transistors is electrically connected to a ground potential and first and second substrate regions located in upper and lower sides of the standard cell,wherein said first substrate region is provided with at least one contact region through which said first substrate region is electrically connected to said power potential while said second substrate region is provided with at least one contact region through which said second substrate region is electrically connected to said ground potential, wherein said first substrate region of said each standard cell is joined to the first substrate region of an adjacent cell of said cell row located adjacent to said each standard cell in order to form a first continuous region extending along said cell row in parallel while the second substrate region of said each standard cell is joined to the second substrate region of said adjacent cell in order to form a second continuous region extending along said cell row in parallel, wherein said first contact region of said each standard cell is located beyond the boundary line between said each standard cell and said adjacent cell and shared by said each standard cell and said adjacent cell to function also as the first contact region of said adjacent cell, wherein said at least one contact region of said first substrate region of said each standard cell is located to be inwardly displaced from the centers of said first substrate region in the longitudinal direction at the location where said first substrate region has a minimum width and functions also as said first contact region of said each standard cell, and wherein said at least one contact region of said second substrate region of said each standard cell is located to be inwardly displaced from the centers of said second substrate region in the longitudinal direction at the location where said second substrate region has a minimum width and functions also as said second contact region of said each standard cell.