Invention Grant
US08358053B2 Unit, oscillator having unit and electronic apparatus having oscillator
有权
具有单元的振荡器和具有振荡器的电子设备
- Patent Title: Unit, oscillator having unit and electronic apparatus having oscillator
- Patent Title (中): 具有单元的振荡器和具有振荡器的电子设备
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Application No.: US12802481Application Date: 2010-06-08
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Publication No.: US08358053B2Publication Date: 2013-01-22
- Inventor: Hirofumi Kawashima
- Applicant: Hirofumi Kawashima
- Applicant Address: JP
- Assignee: Piedek Technical Laboratory
- Current Assignee: Piedek Technical Laboratory
- Current Assignee Address: JP
- Agency: Adams & Wilks
- Priority: JP2003-205844 20030630; JP2003-436310 20031205
- Main IPC: H01L41/08
- IPC: H01L41/08
Abstract:
A unit comprising a quartz crystal resonator vibratable in a flexural mode and having a base portion including a length less than 0.5 mm, and first and second vibrational arms connected to the base portion, at least one groove being formed in each of two of opposite main surfaces of each of the first and second vibrational arms, and an electrode being disposed on a surface of the at least one groove formed in each of the two of the opposite main surfaces of each of the first and second vibrational arms so that the electrode disposed on the surface of the at least one groove formed in each of the two of the opposite main surfaces of the first vibrational arm has an electrical polarity opposite to an electrical polarity of the electrode disposed on the surface of the at least one groove formed in each of the two of the opposite main surfaces of the second vibrational arm.
Public/Granted literature
- US20100301958A1 Unit, oscillator having unit and electronic apparatus having oscillator Public/Granted day:2010-12-02
Information query
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