Patent ID: 6667182
Filing Date: 2003-12-23
Classification: G01J,G01P,H01L

Abstract:
A method for making a ferroelectric thin-film element comprising an Si substrate and a thin-film laminate formed on the Si substrate, a portion of the thin-film laminate being disposed so as to be unsupported, the method comprising the steps of:epitaxially growing a buffer layer on the Si substrate; forming a lower electrode by epitaxially growing a metallic thin film on the buffer layer; orientationally growing or epitaxially growing a ferroelectric thin film on the lower electrode; forming an upper electrode on the ferroelectric thin film; and removing a portion of the buffer layer to form a recess in the buffer layer such that a part of the thin-film laminate is unsupported, wherein said recess does not extend to a bottom surface of the ferroelectric thin-film.