Title:
【発明の名称】圧電振動子およびその製造方法
Document Type and Number:
Japanese Patent JP3475928
Kind Code:
B2
Abstract:
The invention concerns a piezoelectric resonator piece of a piezoelectric resonator having electrode patterns for forming exciting electrodes each of which is composed of an under a metal layer. Each of the electrode patterns for forming conduction electrodes is composed of the under metal layer except the curved or bent portions of the sides of the piezoelectric resonator piece and each of the electrode patterns in these portions are composed of the under metal layer and a gold electrode layer. It is thus possible to provide a piezoelectric resonator in which, even when noble metal layers are partially removed for increasing adhesion of surface protecting films, exciting electrodes are not brought into an open state between the upper side and the lower side of a piezoelectric resonator piece.
Inventors:
Mitsuru Nagai
Yoshiharu Kasuga
Yoshiharu Kasuga
Application Number:
JP2000561702A
Publication Date:
December 10, 2003
Filing Date:
July 23, 1999
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
B44C1/22; C03C15/00; C03C25/68; C23F1/00; H03H3/02; H03H9/215; H04R17/00; (IPC1-7): H03H9/19; H03H3/02; H03H9/215
Domestic Patent References:
| JP9326668A | ||||
| JP7212161A | ||||
| JP5129874A | ||||
| JP2298110A | ||||
| JP6310815A |
Attorney, Agent or Firm:
Masanori Ueyanagi (1 outside)