Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1994-02-25
1997-03-04
Simmons, David A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156250, 156 89, 264 61, 264 67, 29 2535, B32B 3118
Patent
active
056075359
ABSTRACT:
A method of manufacturing a laminated piezoelectric actuator including at least an actuator element which has a plurality of piezoelectric ceramics layers and internal electrode layers laminated alternately and external electrodes which connect alternate internal electrode layers in two groups. The method places a conductor layer on a piezoelectric ceramic green sheet for use as internal electrodes; bores a plurality of slits through the conductor layer-placed green sheet such that the slits are arranged in a line along the X axis of an orthogonal X-Y coordinates given arbitrarily in a plane of the green sheet with the lengthwise side perpendicular to the X axis, at an interval of a predetermined length and the slits in adjacent two lines are staggered by half the predetermined length; bores at least two positioning holes in the conductor layer-placed green sheet, symmetrically with respect to an intersection of a straight line crossing a center of a particular slit along the Y axis and another straight line passing a middle of adjacent two particular lines along the X axis; superposes a plurality of the positioning hole-bored green sheets with alternate green sheets rotated 180 degrees in the plane, based on the positioning holes; produces a parent actuator having the piezoelectric ceramics layers and internal electrode layers laminated alternately, from the thus-superposed green sheets; cuts the ceramics perpendicularly to produce the actuator element
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Japanese Laid-Open Patent Application No. 06-151999, "Manufacture of Laminated Piezoelectric/Electrostrictive Acuator Element", Issue Date: Nov. 9, 1992, Abstract.
Omote Koji
Tsukada Mineharu
Fujitsu Ltd.
Mayes M. Curtis
Simmons David A.
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