Title:
スイッチ装置および試験装置
Document Type and Number:
Japanese Patent JP5707141
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an actuator which is provided with rigidity so that contacts are not agglutinated to each other.SOLUTION: A switching device includes a contact part in which a first contact is provided, and the actuator which moves a second contact to come into contact with or to be separated from the first contact. The actuator includes: a laminated first piezoelectric film and second piezoelectric film; a first insulating layer provided on the surface side opposite to the second piezoelectric film in the piezoelectric film; and a second insulating layer provided on the surface side opposite to the first piezoelectric film in the second piezoelectric film.
Inventors:
Hisao Hori
Yoshikazu Abe
Yoshihiro Sato
Yoshikazu Abe
Yoshihiro Sato
Application Number:
JP2011005653A
Publication Date:
April 22, 2015
Filing Date:
January 14, 2011
Export Citation:
Assignee:
Advantest Corporation
International Classes:
H01H57/00; B81B3/00; G01R31/28; H01L41/09; H01L41/187
Domestic Patent References:
| JP58037159U | ||||
| JP6335089A |
Foreign References:
| WO2007083769A1 |
Attorney, Agent or Firm:
Longhua International Patent Service Corporation