Patent ID: 8549728
Filing Date: 2013-10-08
Classification: G02B,H01L,H02N,Y10T

Abstract:
1. A manufacturing method for a vibration body, comprising: a first step of providing an electromechanical transducer element on an elastic body in a state that the element is divided into a plurality of independent areas by a groove-shaped border portion; a second step of sintering the elastic body and the electromechanical transducer element; a third step of forming electrodes on a surface of the plurality of areas of the electromechanical transducer element; and a fourth step of polarizing the electromechanical transducer element for each of the plurality of areas; wherein in the first step, the electromechanical transducer element is formed by injection molding, and in the injection molding, the elastic body and a piezoelectric element are pressurized, and in the fourth step, the electromechanical transducer element is polarized using the electrodes formed in the third step and the elastic body as electrodes.