Title:
PIEZOELECTRIC TRANSDUCER
Document Type and Number:
Japanese Patent JPH02162817
Kind Code:
A
Abstract:
PURPOSE: To reduce the admittance of a piezoelectric converter by shifting the connecting position of a 2nd electrode and soldering the electrode so that the size of the electrode is independent of the dimensions of soldering part. CONSTITUTION: The converter has a rectangular piezoelectric plate 2 arranged on almost the center of the face FS of a substrate, a 2nd electrode 41 arranged on the right side part of the upper face 24 of the plate 2, a connection area 42 arranged on the right side of the face FS and a conductive bridge 43 of narrow width connecting the electrode 41 to the area 42 and bridge over the major side 22 of the plate 2 and the edge 33 of a contact area 31 of a 1st electrode 3. The connection area 42 is rectangular and connected by the end part of a 2nd connection wire f2 and a solder pallet P2 arranged on the upper face of the area 42. Consequently the small and effective contact area of the 2nd electrode 41 is obtained and the admittance of the piezoelectric converter can be reduced.
Inventors:
FUIRITSUPU DEFURANUU
KUROODO PONKO
KUROODO PONKO
Application Number:
JP20269789A
Publication Date:
June 22, 1990
Filing Date:
August 04, 1989
Export Citation:
Assignee:
THOMSON CSF
International Classes:
G02F1/11; B06B1/06; H01L41/22; H03H9/17; H03H9/24; H03H9/36; (IPC1-7): G02F1/11; H03H9/17; H03H9/24; H03H9/36
Attorney, Agent or Firm:
Takashi Koshiba