Patent ID: 9240544
Filing Date: 2016-01-19
CPC Classification: C04B,H01L,Y10T

Claim Text:
1. A method of manufacturing a piezoelectric element comprising: a step of preparing a green sheet A including a portion which becomes a fired piezoelectric body later, by use of a piezoelectric material; a step of joining, to at least one surface of the green sheet A, a green sheet B having an opening in a portion facing the portion which becomes the fired piezoelectric body later, followed by firing to obtain the fired piezoelectric body provided with a reinforcing plate to which the reinforcing plate formed owing to the firing of the green sheet B is attached; and a step of forming an electrode film in a portion obtained by the firing of the green sheet A in the fired piezoelectric body provided with the reinforcing plate, wherein the piezoelectric material contains at least one of lead and bismuth.