Patent ID: 6124619
Filing Date: 2000-09-26
Classification: H01L

Abstract:
A semiconductor device, comprising:a semiconductor layer;first and second oxide insulating films;an oxide insulating layer;upper and lower protective films; andfirst and second electrodes formed opposite to a major surface of the semiconductor layer through the first and second oxide insulating films, respectively,said first and second electrodes being electrically insulated from each other through the oxide insulating layer formed so as to cover said second electrode,said second electrode including a flat plate type conductor having a lower major surface formed opposite to said major surface of said semiconductor layer and an upper major surface formed opposite to the lower major surface,the upper and lower protective films being oxidation-resistant films suppressing an oxidant from infiltrating therethrough and formed so as to cover said upper and lower major surfaces of said flat plate type conductor, respectively,said semiconductor device further comprises a side protective film which is an oxidation-resistant film formed so as to entirely cover a side wall surface of said flat plate type conductor,said side protective film is formed so as to extend toward and be in contact with said major surface of said semiconductor layer, andsaid first electrode has a portion formed over at least a portion of said upper major surface of said flat plate type conductor.