Patent ID: 6214664
Filing Date: 2001-04-10
Classification: H01L

Abstract:
A method of manufacturing a semiconductor device, comprising the steps of:forming an isolating and insulating film by LOCOS for defining an active region in a predetermined region of a main surface of a semiconductor substrate;forming a first conductive layer of a predetermined shape at the predetermined region of said active region with an insulating film therebetween;forming an impurity region by using said first conductive layer and said isolating and insulating film as a mask and introducing an impurity to the predetermined region of said active region;forming a resist film covering said semiconductor substrate and having an opening for exposing a predetermined region of an end portion of said isolating and insulating film at the side of said impurity region;forming an end surface reaching said semiconductor substrate at said isolating and insulating film by using said resist film as a mask and removing the exposed region of the end portion of said isolating and insulating film;forming an insulating layer covering the end surface of said isolating and insulating film and having an opening which reaches said impurity region; andforming a second conductive layer electrically connected to said impurity region through said opening.