Patent ID: 6284618
Filing Date: 2001-09-04
Classification: H01L

Abstract:
A method for manufacturing a semiconductor device, comprising the steps of:forming a contact hole on an insulation film provided on a substrate from a top face of said insulation film to a bottom face thereof;providing a conductive material on said insulation film and filling an inside of said contact hole with said conductive material to obtain a contact;forming a resist pattern above said contact by performing a photolithographic step on said conductive material;selectively performing anisotropic etching for said conductive material by using said resist pattern as an etching mask to obtain a conductor pattern, thereby removing said resist pattern;forming a conductive film along an exposed surface of said conductor pattern and that of said insulation film including said contact; andperforming anisotropic etching for said conductive film by using said surface of said insulation film as an etching stopper to leave a conductive sidewall bonded to a side face of said conductor pattern, said conductive sidewall extending no higher than a top face of the conductor pattern,wherein said contact and said conductor pattern are electrically connected through said conductive sidewall provided like a frame on said side face of said conductor pattern when at least a part of a top face of said contact and said conductor pattern are not superposed.