Patent ID: 6031291
Filing Date: 2000-02-29
Classification: H01L

Abstract:
A semiconductor device comprising a semiconductor substrate, an impurity diffused layer in a principal surface of said semiconductor substrate, a conductive member formed on said semiconductor substrate adjacent to said impurity diffused layer and having a sloped surface inclined to said principal surface of said semiconductor substrate, an insulator film deposited to cover said impurity diffused layer and said conductive member, and a common contact hole formed through said insulator film to extend over a surface of said impurity diffused layer and said sloped surface of said conductive member, said insulator film having a thickness d such that d=m.lambda./4n, where .lambda. is a wavelength of an irradiating light used in a photolithographic process for patterning a photosensitive resist used in formation of said common contact hole, m is a positive odd number, and n is a refractive index of said insulator film.