The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 21, 2014
Filed:
Feb. 25, 2011
Yumi Yamaguchi, Chiba, JP;
Kazuyoshi Sugama, Chiba, JP;
Yumi Yamaguchi, Chiba, JP;
Kazuyoshi Sugama, Chiba, JP;
SII Crystal Technology Inc., Chiba, JP;
Abstract
Provided is a method of manufacturing a piezoelectric vibrator of the invention, the piezoelectric vibrator including a tuning fork type piezoelectric vibrating reed including a pair of vibration arm portions, a package that accommodates the piezoelectric vibrating reed, and a pair of regulation films that is formed along a longitudinal direction of the vibration arm portions corresponding to each of the pair of vibration arm portions, the piezoelectric vibrator being capable of regulating a degree of vacuum in the package more than a certain level by irradiating the regulation films with a laser to evaporate a part of the regulation films. The method includes a gettering process of irradiating a laser in symmetrical positions via a center axis of the pair of vibration arm portions in the pair of regulation films.