Title:
PIEZOELECTRIC VIBRATION PIECE AND PIEZOELECTRIC VIBRATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2007/004348
Kind Code:
A1
Abstract:
A piezoelectric vibration piece comprising a base unit and a vibration unit having
a plurality of legs, wherein each leg is provided with an exciting electrode and
a lead-out electrode, and the base unit is provided with at least two conductive
joining member forming regions for allowing part of a lead-out electrode to join
with an external electrode via a conductive joining member. The base unit is formed
to be wider than the vibration unit, and has a base center region for allowing a
vibration unit formed to be the same in width as the vibration unit to extend and
a base width-wide region extending beyond the vibration unit to set conductive
joining member forming regions. A slender, thin-wall element starting at the
boundary corner between the base center region and the base width-wide region
of the base unit is formed on this base unit. Or, a slender, thin-wall element starting
at the corner on a leg extending side of the base width-wide region is formed on
this base unit.
Inventors:
SHIRAI TAKASHI (JP)
Application Number:
PCT/JP2006/308444
Publication Date:
January 11, 2007
Filing Date:
April 21, 2006
Export Citation:
Assignee:
DAISHINKU CORP (JP)
SHIRAI TAKASHI (JP)
SHIRAI TAKASHI (JP)
International Classes:
H03H9/215; H01L41/08; H01L41/09; H01L41/22; H01L41/23; H01L41/29; H01L41/313; H03H9/19
Foreign References:
| JP2004112843A | 2004-04-08 | |||
| JP2004260718A | 2004-09-16 | |||
| JP2003069375A | 2003-03-07 | |||
| JP2004289478A | 2004-10-14 |
Attorney, Agent or Firm:
KURAUCHI, Giro (Nishitemma 4-chome Kita-k, Osaka-shi Osaka 47, JP)
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