Patent ID: 6323057
Filing Date: 2001-11-27
Classification: H01L

Abstract:
A method of producing a thin-film capacitor, comprising:forming a bottom electrode;forming a perovskite-structured, amorphous oxide thin-film on said bottom electrode at a temperature of equal to or less than 300.degree. C., said perovskite-structured, amorphous oxide thin-film having a formula of ABO.sub.3, where A is at least one element selected from the group consisting of bivalent metallic elements, lead, and lanthanum, and B is at least one element selected from the group consisting of quadrivalent metallic elements;crystallizing said perovskite-structured, amorphous oxide thin-film using heat treatment so as to form a granular structure of crystal grains, thereby forming a perovskite-structured, polycrystalline oxide thin-film; andforming a top electrode on said perovskite-structured, polycrystalline oxide thin-film to be opposite to said bottom electrode through said crystallized oxide thin-film,wherein a ratio of (A/B) is in a range from 1.1 to 2.0.