Patent ID: 8104154
Filing Date: 2012-01-31
Classification: H03H,Y10T

Abstract:
1. A method of fabricating a plurality of piezoelectric vibrating pieces each including a piezoelectric plate made of a piezoelectric material, and an electrode formed on an outer surface of the piezoelectric plate for vibrating the piezoelectric plate when a predetermined voltage is applied thereto at a time utilizing a wafer, the method comprising: an outer shape forming step of forming two or more of through holes penetrating the wafer and forming outer shapes of the plurality of piezoelectric plates at the wafer by constituting reference points by centers of the through holes by etching the wafer by a photolithography technology; a wafer setting step of preparing a jig for the wafer having a flat plate portion and inserting pins formed by a number the same as a number of the through holes to project from above the flat plate portion, thereafter, mounting the wafer on the flat plate portion in a state of inserting the inserting pins into the through holes; an electrode forming step of forming an electrode by patterning the electrode film on the outer surfaces of the plurality of piezoelectric plates; and a cutting step of cutting to separate the plurality of piezoelectric plates on the wafer to fragment; wherein in the electrode forming step and the cutting step, positioning to the wafer is carried out by constituting at least one of the reference points by the center of the through hole.