Invention Grant
- Patent Title: Piezoelectric vibrator, method of manufacturing piezoelectric vibrator, oscillator, electronic equipment and radio-controlled timepiece
- Patent Title (中): 压电振子，制造压电振子的方法，振荡器，电子设备和无线电控制的钟表
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Application No.: US13035575Application Date: 2011-02-25
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Publication No.: US08552805B2Publication Date: 2013-10-08
- Inventor: Junya Fukuda
- Applicant: Junya Fukuda
- Applicant Address: JP Chiba
- Assignee: Seiko Instruments Inc.
- Current Assignee: Seiko Instruments Inc.
- Current Assignee Address: JP Chiba
- Agency: Brinks Hofer Gilson & Lione
- Main IPC: H01L41/22
- IPC: H01L41/22 ; H01L41/053 ; H03H9/215
Abstract:
A piezoelectric vibrator includes a tuning fork type piezoelectric vibrating reed including a pair of vibration arm portions; a package that accommodates the piezoelectric vibrating reed; and a getter material that is formed along the longitudinal direction of the vibration arm portion in an inner portion of the package, wherein a cross-sectional area of a middle portion of the getter material adjacent to a center portion of the longitudinal direction of the vibration arm portion is greater than that of an end portion of the getter material.
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