Patent ID: 6730524
Filing Date: 2004-05-04
Classification: B41J,H01L

Abstract:
A method for manufacturing an electromechanical transducer, comprising the steps of:using a compound selected from the group consisting of zirconium oxide, tantalum oxide, silicon nitride, and aluminum oxide to form an interlayer on the surface where said transducer is installed; forming a bottom electrode over said interlayer, wherein said step of forming said bottom electrode comprises the steps of, using iridium to form a first iridium layer, using a specific metal to form a metal layer of said first iridium layer, and using iridium to form a second iridium layer over said metal layer; forming a ferroelectric thin film precursor over said bottom electrode; and baking said ferroelectric thin film precursor at a temperature of 750Â° C. or lower, thereby diffusing iridium of said first iridium layer and converting said first iridium layer and said metal layer into an alloy layer in which indium is alloyed with said metal.