Piezoelectric composite apparatus and a method for fabricating the same
First Claim
1. A method of fabricating a piezoelectric composite apparatus, comprising the steps of:
- providing a plurality of wafers of piezoelectric material;
bonding the wafers together with an adhesive material to form a stack of alternating layers of piezoelectric material and adhesive material, the stack having a thickness;
cutting through the stack in a direction substantially parallel to the thickness of the stack and across the alternating layers of piezoelectric material and adhesive material to provide at least one piezoelectric fiber sheet comprising a plurality of piezoelectric fibers in juxtaposition to adhesive material, the at least one piezoelectric fiber sheet having a first side and a second side;
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 at least one piezoelectric fiber sheet; and
bonding the first film to the first side of the at least one piezoelectric fiber sheet such that the conductive patterns of the first film electrically contact the piezoelectric fibers of the at least one piezoelectric fiber sheet.
1 Assignment
0 Petitions
Accused Products
Abstract
A method for fabricating a piezoelectric macro-fiber composite actuator comprises making a piezoelectric fiber sheet by providing a plurality of wafers of piezoelectric material, bonding the wafers together with an adhesive material to form a stack of alternating layers of piezoelectric material and adhesive material, and cutting through the stack in a direction substantially parallel to the thickness of the stack and across the alternating layers of piezoelectric material and adhesive material to provide at least one piezoelectric fiber sheet having two sides comprising a plurality of piezoelectric fibers in juxtaposition to the adhesive material. The method further comprises bonding two electrically conductive films to the two sides of the piezoelectric fiber sheet. At least one conductive film has first and second conductive patterns formed thereon which are electrically isolated from one another and in electrical contact with the piezoelectric fiber sheet.
-
Citations
30 Claims
-
1. A method of fabricating a piezoelectric composite apparatus, comprising the steps of:
-
providing a plurality of wafers of piezoelectric material;
bonding the wafers together with an adhesive material to form a stack of alternating layers of piezoelectric material and adhesive material, the stack having a thickness;
cutting through the stack in a direction substantially parallel to the thickness of the stack and across the alternating layers of piezoelectric material and adhesive material to provide at least one piezoelectric fiber sheet comprising a plurality of piezoelectric fibers in juxtaposition to adhesive material, the at least one piezoelectric fiber sheet having a first side and a second side;
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 at least one piezoelectric fiber sheet; and
bonding the first film to the first side of the at least one piezoelectric fiber sheet such that the conductive patterns of the first film electrically contact the piezoelectric fibers of the at least one piezoelectric fiber sheet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A method of fabricating a plurality of piezoelectric fibers, comprising the steps of:
-
providing a plurality of wafers of piezoelectric material;
bonding the wafers together with an adhesive material between each wafer to form a stack of alternating layers of piezoelectric material and adhesive material, the stack having a thickness; and
cutting through the stack in a direction substantially parallel to the thickness of the stack and across the alternating layers of piezoelectric material and adhesive material to provide at least one piezoelectric fiber sheet comprising a plurality of piezoelectric fibers in juxtaposition to the adhesive material. - View Dependent Claims (14, 15)
-
-
16. A piezoelectric composite apparatus made by a process comprising:
-
providing a plurality of wafers of piezoelectric material;
bonding the wafers together with an adhesive material to, form a stack of alternating layers of piezoelectric material and adhesive material, the stack having a thickness;
cutting through the stack in a direction substantially parallel to the thickness of the stack and across the alternating layers of piezoelectric material and adhesive material to provide at least one piezoelectric fiber sheet comprising a plurality of piezoelectric fibers in juxtaposition to adhesive material, the at least one piezoelectric fiber sheet having a first side and a second side;
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 at least one piezoelectric fiber sheet; and
bonding the first film to the first side of the at least one piezoelectric fiber sheet such that the conductive patterns of the first film electrically contact the piezoelectric fibers of the at least one piezoelectric fiber sheet. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
-
-
28. A plurality of piezoelectric fibers made by a process comprising:
-
providing a plurality of wafers of piezoelectric material;
bonding the wafers together with an adhesive material between each wafer to form a stack of alternating layers of piezoelectric material and adhesive material, the stack having a thickness; and
cutting through the stack in a direction substantially parallel to the thickness of the stack and across the alternating layers of piezoelectric material and adhesive material to provide at least one piezoelectric fiber sheet. - View Dependent Claims (29, 30)
-
Specification