Title:
積層型圧電素子
Document Type and Number:
Japanese Patent JP4586352
Kind Code:
B2
Abstract:
Provided is a stack-type piezoelectric device capable of preventing variations in a response time of an active part corresponding to each individual electrode from occurring depending upon locations of individual electrodes. In a stack-type piezoelectric device 1 , a voltage is almost simultaneously applied through electroconductive members in a plurality of through holes formed in each of piezoelectric layers 3, 5 and along an extending direction of relay electrodes 6 , to portions opposed to individual electrodes 2 arrayed in each row direction, in each of common electrodes 4, 4 adjacent in the thickness direction. Therefore, it is feasible to prevent the variations in the response time of the active part corresponding to each individual electrode 2 from occurring depending upon the locations of the individual electrodes 2 arranged in a matrix, whereby the stack-type piezoelectric device 1 can be appropriately driven.
Inventors:
Seishi Sasaki
Application Number:
JP2003381645A
Publication Date:
November 24, 2010
Filing Date:
November 11, 2003
Export Citation:
Assignee:
tdk Corporation
International Classes:
H01L41/083; H01L41/047; H01L41/08; H01L41/187; H01L41/22; H01L41/293
Domestic Patent References:
| JP2004243648A | ||||
| JP2003334947A | ||||
| JP2002374685A |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Shiro Terasaki
Toyotaka Abe
Shiro Terasaki
Toyotaka Abe