EP 1687854 A1 20060809 - PIEZO ACTUATOR
Title (en)
PIEZO ACTUATOR
Title (de)
PIEZOAKTOR
Title (fr)
ACTIONNEUR PIEZO
Publication
Application
Priority
- DE 2004001980 W 20040907
- DE 10353171 A 20031114
Abstract (en)
[origin: WO2005053046A1] Disclosed is a piezo actuator, e.g. for actuating a mechanical component. Said piezo actuator comprises a multilayer structure of piezo layers (2) and can be impinged upon by a certain voltage in a piezoelectrically active zone (A) via inner electrodes (3, 4) that are disposed between the layers. Inactive zones (B, C) are provided in the layer structure of the piezo actuator (1). At least the top part or the bottom part, which represent inactive zones (B, C) without inner electrodes, are formed from a material whose permittivity (ɛ'33) is smaller than the permittivity (ɛ33) of the active zone (A).
IPC 8 full level
H01L 41/083 (2006.01); H01L 41/187 (2006.01); H02N 2/04 (2006.01)
CPC (source: EP KR US)
H10N 30/00 (2023.02 - KR); H10N 30/50 (2023.02 - EP US)
Citation (search report)
See references of WO 2005053046A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005053046 A1 20050609; CN 1879231 A 20061213; DE 10353171 A1 20050616; EP 1687854 A1 20060809; JP 2006527486 A 20061130; KR 20060125750 A 20061206; US 2007046148 A1 20070301; US 7402937 B2 20080722
DOCDB simple family (application)
DE 2004001980 W 20040907; CN 200480033403 A 20040907; DE 10353171 A 20031114; EP 04786708 A 20040907; JP 2006515701 A 20040907; KR 20067009232 A 20060512; US 57890204 A 20040907