Patent ID: 7306984

Claim:
A manufacturing method of a semiconductor integrated circuit device, comprising the steps of: (a) forming a first columnar laminate, a second columnar laminate and a third columnar laminate over a semiconductor substrate; (b) forming first insulating films over side walls of the first, the second and the third columnar laminates; (c) forming conductive films over the side walls of the first, the second and the third columnar laminates via the first insulating films; (d) forming a second insulating film to cover the conductive films, the first columnar laminate, the second columnar laminate and the third columnar laminate; and (e) forming a third insulating film over the second insulating film; wherein the second columnar laminate is adjusted to the first columnar laminate in a first direction, wherein the third columnar laminate is adjusted to the first columnar laminate in a second direction being perpendicular to the first direction, wherein a second distance between the first columnar laminate and the third columnar laminate is wider than a first distance between the first columnar laminate and the second columnar laminate, wherein the second insulating film has a thickness enough to fill a space of the first distance and but not enough to fill a space of the second distance, and wherein the third insulating film has a thickness enough to fill a space of the second distance.