Method of fabricating a piezoelectric composite apparatus
First Claim
1. A method of fabricating a piezoelectric composite apparatus, comprising the steps of:
- providing a structure comprising a monolithic piezoelectric material having a first side and a second side;
providing a backing sheet having an adhesive side;
positioning the structure on the backing sheet such tat the first side of the structure is attached to the adhesive side of the backing sheet;
slicing through the structure positioned on the backing sheet to provide a plurality of piezoelectric fibers in juxtaposition, the plurality of piezoelectric fibers having first and second sides that correspond, respectively, to the first and second sides of the structure;
providing a first film having a first conductive pattern and a second conductive pattern formed thereon, the first conductive pattern being electrically isolated from the second conductive pattern, the first and second conductive patterns each having a plurality of electrodes that cooperate to form a pattern of interdigitated electrodes;
providing a second film;
bonding the second film to the second side of the plurality of piezoelectric fibers;
removing the backing sheet from the first side of the plurality of piezoelectric fibers; and
bonding the first film to the first side of the plurality of piezoelectric fibers such that the conductive patterns of the first film electrically contact the plurality of piezoelectric fibers.
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Accused Products
Abstract
A method for fabricating a piezoelectric macro-fiber composite actuator comprises providing a piezoelectric material that has two sides and attaching one side upon an adhesive backing sheet. The method further comprises slicing the piezoelectric material to provide a plurality of piezoelectric fibers in juxtaposition. A conductive film is then adhesively bonded to the other side of the piezoelectric material, and the adhesive backing sheet is removed. The conductive film has first and second conductive patterns formed thereon which are electrically isolated from one another and in electrical contact with the piezoelectric material. The first and second conductive patterns of the conductive film each have a plurality of electrodes to form a pattern of interdigitated electrodes. A second film is then bonded to the other side of the piezoelectric material. The second film may have a pair of conductive patterns similar to the conductive patterns of the first film.
112 Citations
15 Claims
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1. A method of fabricating a piezoelectric composite apparatus, comprising the steps of:
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providing a structure comprising a monolithic piezoelectric material having a first side and a second side;
providing a backing sheet having an adhesive side;
positioning the structure on the backing sheet such tat the first side of the structure is attached to the adhesive side of the backing sheet;
slicing through the structure positioned on the backing sheet to provide a plurality of piezoelectric fibers in juxtaposition, the plurality of piezoelectric fibers having first and second sides that correspond, respectively, to the first and second sides of the structure;
providing a first film having a first conductive pattern and a second conductive pattern formed thereon, the first conductive pattern being electrically isolated from the second conductive pattern, the first and second conductive patterns each having a plurality of electrodes that cooperate to form a pattern of interdigitated electrodes;
providing a second film;
bonding the second film to the second side of the plurality of piezoelectric fibers;
removing the backing sheet from the first side of the plurality of piezoelectric fibers; and
bonding the first film to the first side of the plurality of piezoelectric fibers such that the conductive patterns of the first film electrically contact the plurality of piezoelectric fibers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
applying an adhesive layer to the first side of the second film;
placing the first side of the second film on the second side of the plurality of piezoelectric fibers; and
curing the adhesive layer.
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13. The method according to claim 12 wherein the first film has a first side and a second side, and the step of bonding the first film comprises:
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applying a second adhesive layer to the first side of the first film;
placing the first side of the first film on the first side of the plurality of piezoelectric fibers; and
curing the second adhesive layer.
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14. The method according to claim 1 further comprising the step of:
attaching electrically conductive extensions to the first and second conductive patterns.
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15. A method of fabricating a piezoelectric composite apparatus, comprising the steps of:
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providing a structure comprising a monolithic piezoelectric material having a first side and a second side;
providing a backing sheet having an adhesive side;
positioning the structure on the backing sheet such that the first side of the structure is attached to the adhesive side of the backing sheet;
cutting through the structure positioned on the backing sheet to provide a plurality of piezoelectric fibers in juxtaposition, the plurality of piezoelectric fibers having first and second sides that correspond, respectively, to the first and second sides of the structure;
providing a first film having a first conductive pattern and a second conductive pattern formed thereon, the first conductive pattern being electrically isolated from the second conductive pattern, the first and second conductive patterns each having a plurality of electrodes that cooperate to form a pattern of interdigitated electrodes;
providing a second film;
bonding the second film to the second side of the plurality of piezoelectric fibers;
peeling the backing sheet away from the first side of the plurality of piezoelectric fibers; and
bonding the first film to the first side of the plurality of piezoelectric fibers such that the conductive patterns of the first film electrically contact the plurality of piezoelectric fibers.
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Specification