Patent ID: 6960539

Claim:
A manufacturing method for a substrate for electronic devices comprising: a pretreatment step for washing a substrate consisting of silicon and having a film-forming surface; a first film-forming step in which the substrate having been subjected to said pretreatment step is arranged in a film-forming container under a reduced-pressure atmosphere, and a predetermined gas or plasma is irradiated onto the film-forming surface of said substrate, to epitaxially grow a first buffer layer comprising a first metal oxide having a fluorite structure; a second film-forming step in which a predetermined gas or plasma is irradiated onto the surface of said first buffer layer, to epitaxially grow a second buffer layer comprising a second metal oxide having a fluorite structure; a third film-forming step in which a predetermined gas or plasma is irradiated onto the surface of said second buffer layer, to epitaxially grow a first oxide electrode layer comprising a third metal oxide having a layered perovskite structure; and a fourth film-forming step in which a predetermined gas or plasma is irradiated onto the surface of said first oxide electrode layer, to epitaxially grow a second oxide electrode layer comprising a fourth metal oxide having a simple perovskite structure.