Patent ID: 8663487
Filing Date: 2014-03-04
Classification: G01C,H03H,Y10T

Abstract:
1. A method for manufacturing a crystal oscillator comprising the step of: first etching so as to form a prescribed external shape; forming an electrode at least in a portion of a surface of said external shape; measuring a leakage amount associated with leakage vibration of said external shape; processing said electrode into a prescribed shape based on the measurement result of said leakage amount measuring step so that said surface of said external shape has an adjustment area where said electrode has been removed; and second etching said external shape by using said electrode processed in said processing step as a mask in order to bring said leakage amount within a specified value, wherein said external shape includes a base portion and at least a vibrating tine extending from said base portion, and wherein said electrode forming step forms said electrode on said vibrating tine.