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1. (WO2001031713) PIEZOELECTRIC MULTI-LAYER ACTUATOR WITH CERAMIC INNER ELECTRODES

Pub. No.:    WO/2001/031713    International Application No.:    PCT/DE2000/003546
Publication Date: Fri May 04 01:59:59 CEST 2001 International Filing Date: Wed Oct 11 01:59:59 CEST 2000
IPC: H01L 41/047
H01L 41/083
Applicants: ROBERT BOSCH GMBH
SCHULTE, Thomas
HAMMER, Marianne
LINDNER, Friederike
Inventors: SCHULTE, Thomas
HAMMER, Marianne
LINDNER, Friederike
Title: PIEZOELECTRIC MULTI-LAYER ACTUATOR WITH CERAMIC INNER ELECTRODES
Abstract:
The invention relates to a piezoelectric ceramic body (5), especially a piezoelectric ceramic actuator, comprising a plurality of insulating layers (12) with a ceramic material positioned on top of each other. These insulating layers (12) are separated from each other by inner electrodes (13, 14) respectively, at least in areas. Said inner electrodes (13, 14) contain a mixed conductive material, especially a perovskitic or fluorite-based ceramic material.