Title:
LAMINATED TYPE ELECTROSTRICTIVE EFFECT ELEMENT AND MANUFACTURE THEREOF
Document Type and Number:
Japanese Patent JPH03218688
Kind Code:
A
Abstract:
PURPOSE:To make an electrostrictive effective element thin by a method wherein an isulating layer which insulates only the exposed end face of the inner electrode exposed at the side end face of the element and an electrstrictive material around the exposed end face concerned is formed of polyimide resin provided with a specific repeating unit and insulating filler. CONSTITUTION:An insulating layer 3 which insulates only the exposed end face of an inner electrode 2 exposed at the side end face of an element and an electrostrictive material around the exposed end face concerned is formed of polyimide resin provided with a specific repeating unit represented by a formula I and insulating filler. In the formula I, X denotes a tetravalent group selected from a group composed of polyphenyl groups formed combining at least one of a phenyl group and a biphenyl group with at least one of O, CO, S, Ch2, C(CH3)2, and C(CF3)2, and Y denotes a bivalent group selected from a group composed of a polyphenyl group, an alkylene group, and a xylylene group formed combining at least one of a phenyl group and a biphenyl group with at least one of O, CO, S, SO2, CH2, C(CH3)2, and C(CF3)2. By this setup, an electrostrictive effect element can be formed into a thin type.
Inventors:
HAGIMURA ATSUSHI
INAGE IKUO
NISHIHARA KUNIO
NAKAJIMA MUTSUO
INAGE IKUO
NISHIHARA KUNIO
NAKAJIMA MUTSUO
Application Number:
JP30952090A
Publication Date:
September 26, 1991
Filing Date:
November 15, 1990
Export Citation:
Assignee:
MITSUI TOATSU CHEMICALS
International Classes:
H01L41/083; H01L41/09; H01L41/193; (IPC1-7): H01L41/09; H01L41/193
Attorney, Agent or Firm:
Yamashita