Patent ID: 6586260
Filing Date: 2003-07-01
Classification: C23C,H01L,Y10T

Abstract:
A method of forming an electrode and a ferroelectric thin film thereon, comprising:preparing a substrate; depositing an electrode on the substrate, wherein the electrode is formed of a material taken from the group of materials consisting of iridium and iridium composites; and forming a ferroelectric thin film thereon wherein the ferroelectric thin film exhibits surface smoothness and uniform thickness, including mixing a precursor of lead acetate trihydrate and germanium ethoxide in a Pb/Ge molar ratio of 4-6:3, distilling the mixture to remove the water; depositing a PGO thin film by chemical solution deposition; baking the structure at between about 100 EC to 300 EC; and crystallization annealing in an oxygen atmosphere at a temperature of about 500 EC.