Title:
【発明の名称】圧電素子の分極方法
Document Type and Number:
Japanese Patent JP3136881
Kind Code:
B2
Abstract:
PURPOSE:To provide a piezoelectric element polarizing method by which the piezoelectric characteristic of a piezoelectric element can be sufficiently drawn out without using such a material that may destroy the environment and by preventing the occurrence of dielectric breakdown. CONSTITUTION:A piezoelectric element is polarized by applying a prescribed DC voltage across the element for a prescribed period of time after raising the temperature of the element to a prescribed level in a high insulating gas. As a result, a piezoelectric element sufficiently having with an aimed piezoelectric characteristic can be obtained.
Inventors:
Power Onuma
Furuya Wataru
Furuya Wataru
Application Number:
JP240994A
Publication Date:
February 19, 2001
Filing Date:
January 14, 1994
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H01L41/257; (IPC1-7): H01L41/22
Attorney, Agent or Firm:
Fumio Iwahashi (2 others)