Method for manufacturing a piezoelectric actuator

Details Method for manufacturing a piezoelectric actuator Method for manufacturing a piezoelectric actuator

2011-08-30

2011-08-30

Banks, Derris H (Department: 3729)

Metal working

Piezoelectric device making

C029S830000, C029S831000, C029S846000, C310S334000

Reexamination Certificate

active

08006358

ABSTRACT:
A method for manufacturing a piezoelectric actuator, the method comprising: co-extruding alternating strips of a high permittivity material and a low permittivity material to form a green tape comprising said alternating strips of said high permittivity material and said low permittivity material; cutting said green tape to form a plurality of sheets, each sheet comprising a high permittivity region and at least two low permittivity regions adjacent to the high permittivity region; applying at least one conductive region to each one of two or more of the sheets to overly the high permittivity region and to leave exposed at least one low permittivity region; and stacking a plurality of sheets to form an actuator stack comprising adjacent sheets, wherein the or each conductive region on each sheet is offset with respect to a conductive region on a different sheet within the actuator stack.

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