Patent ID: 8476138

Claim:
A method of manufacturing a semiconductor device including memory cells including MISFETs, comprising steps of: (a) forming a first film over a conductive film formed over a main surface of a semiconductor substrate; (b) patterning a first film along a first direction by using a first resist film as a mask; (c) after the step (b), removing the first resist film; (d) after the step (c), patterning the first film along a second direction substantially perpendicular to the first direction by using a second resist film as a mask; and (e) after the step (d), removing the second resist film; (f) after the step (e), patterning the conductive film by using the first film patterned in the step (e) to form gate patterns for gate electrodes of the MISFETs, wherein the memory cell comprises a memory cell of a static random memory, wherein the memory cell includes a first drive MISFET, a second drive MISFET, a first transfer MISFET and a second transfer MISFET such that the first drive MISFET and the first transfer MISFET are cross-coupled to the second drive MISFET and the second transfer MISFET, and wherein the first drive MISFET and the first transfer MISFET are arranged with point symmetry to the second drive MISFET and the second transfer MISFET, respectively, with respect to a center point in a memory cell forming region.