Patent ID: 6931700
Filing Date: 2005-08-23
Classification: G11B,H01L,Y10T

Abstract:
1. A manufacturing method for thin film piezoelectric elements, comprising: forming a flat-plate laminate by sequentially laminating a first electrode layer, a piezoelectric thin film, and a second electrode layer, on one surface of an element forming substrate, and forming on said one surface of said element forming substrate a plurality of thin film piezoelectric elements comprising connecting electrodes for electrically connecting said first electrode layer and said second electrode layer to external equipment; forming said element holding layer comprising resin over the one surface of said element forming substrate including said thin film piezoelectric elements; bonding the one surface of said element forming substrate, opposed to a temporary fixing substrate and covered with said element holding layer, on said temporary fixing substrate by using a fixing resin; covering a peripheral area with a specified width from a peripheral portion opposite to the one surface of said element forming substrate and a peripheral end portion of said element forming substrate with said fixing resin; and removing said element forming substrate by etching in an area other than the area covered with said fixing resin thereby holding said thin film piezoelectric elements by said element holding layer; and separating said thin film piezoelectric elements held by said element holding layer into individually separated elements or groups of elements.