Patent ID: 7527982
Filing Date: 2009-05-05
Classification: C04B,C23C,H01G,H01L

Abstract:
1. A semiconductor device manufacturing method, comprising a process for forming a crystalline insulation film made of an ABO 3 perovskite type oxide dielectric on a ground film, a process for forming an amorphous film, which is to be the crystalline insulation film, on the ground film and a process for forming the crystalline insulation film by crystallizing the amorphous film at least from the upper surface side thereof, wherein the composing ratio of the B-site atom of the amorphous film is set selectively so that the temperature, at which the crystallization of the amorphous film starts, is set to decrease gradually from the central portion of the amorphous film towards the upper surface side and an interface between the amorphous film and the ground film.