Patent US4748537A successfully refreshed from Google Patents.
US4748537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Decoupling capacitor and method of formation thereof
Assignee: Circuit Components Inc
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Filing: 1987-09-08
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Granted: 1988-05-31
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Expires: 2007-09-08
Abstract
Abstract A hermetically sealed and automatically insertable decoupling capacitor for use in conjunction with integrated circuit DIP inserter devices having a multi-layer ceramic capacitor chip provided with conductive electrodes on the top and bottom surfaces thereof sandwiched between suitable conductive strips and insulating layers and retained within an opening formed in an insulating strip by solder or conductive adhesive. The multi-layer ceramic capacitor further includes conductive end terminations having insulative caps thereon to prevent shorting.
Inventors
- 👤 Jorge M. Hernandez
- 👤 Rodney W. Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:07
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/228; H01G2/00; H01G2/02; H01G2/06; H05; H05K; H05K1/00; H05K1/18; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435
Claims Analysis
Total Claims: 74
Claim 1
Independent Claim
543 words
A method of making a capacitor, including the steps of: removing unwanted material from a first strip of electrically conductive material to define a first conductor having a first active lead connected thereto and a first dummy lead associated with said first conductor, but electrically isolated therefrom; removing unwanted material from a second strip of electrically conductive material to define a second conductor having a second active lead connected thereto and a second dummy lead associated with said second conductor, but electrically isolated therefrom, said first and second conductive strips being spaced apart and parallel with said first and second conductors in alignment with one another; placing a central strip of electrically insulative material between said first and second conductors, said central insulative strip having windows therethrough wherein each of said windows define a recess communicating between said first and second conductors; placing at least one multi-layer capacitor element in said recess and between said first and second conductors, said capacitor element having opposed first and second conductive top and bottom surfaces, said capacitor element further comprising dielectric material having a pair of opposed end surfaces and top and bottom surfaces with said conductive top and bottom surfaces on said respective top and bottom surfaces of said dielectric material, said capacitor element also having mutually parallel interleaved conductive layers between and parallel to said conductive top and bottom surfaces, with said top conductive surface being in electrical contact with said first conductor and said bottom conductive surface being in electrical contact with said second conductor whereby said first conductor, second conductor, conductive top surface, conductive bottom surface and interleaved conductive layers are all mutually parallel, said capacitor element further comprising first and second conductive end terminations on said dielectric material end surfaces with alternating layers of said interleaved conductive layers being electrically connected and defining first and second groups of conductive layers, said first group of conductive layers terminating at said first conductive end termination and said second group of conductive layers terminating at said second conductive end termination, said top conductive surface being connected and substantially transverse to said first conductive end termination, said bottom conductive surface being connected and substantially transverse to said second conductive end termination, a first gap being defined between said top conductive surface and said second end termination and a second gap being defined between said bottom conductive surface and said first end termination, an electrically insulative cap being provided over each of said first and second conductive end terminations wherein said conductive end terminations are encapsulated and wherein electrical bridging in said gap between said top conductive surface and said second end termination and in said gap between said bottom conductive surface and said first end termination is precluded by said insulative caps; placing a first outer strip of electrically insulative material on said first conductor opposite said central insulative strip; placing a second outer strip of electrically insulative material on said second conductor opposite said central insulative strip; providing adhesive between said first and second conductors, first and second outer insulative strips and central insulative strip; and bonding the above elements to form a laminated assembly with said first and second conductors, first and second outer insulative strips and central insulative strip being bonded together.
Claim 2
Independent Claim
543 words
A method of making a capacitor, including the steps of: removing unwanted material from a first strip of electrically conductive material to define a first conductor having a first active lead connected thereto and a first dummy lead associated with said first conductor, but electrically isolated therefrom; removing unwanted material from a second strip of electrically conductive material to define a second conductor having a second active lead connected thereto and a second dummy lead associated with said second conductor, but electrically isolated therefrom, said first and second conductive strips being spaced apart and parallel with said first and second conductors in alignment with one another; placing a central strip of electrically insulative material between said first and second conductors, said central insulative strip having windows therethrough wherein each of said windows define a recess communicating between said first and second conductors; placing at least one multi-layer capacitor element in said recess and between said first and second conductors, said capacitor element having opposed first and second conductive top and bottom surfaces, said capacitor element further comprising dielectric material having a pair of opposed end surfaces and top and bottom surfaces with said conductive top and bottom surfaces on said respective top and bottom surfaces of said dielectric material, said capacitor element also having mutually parallel interleaved conductive layers between and parallel to said conductive top and bottom surfaces, with said top conductive surface being in electrical contact with said first conductor and said bottom conductive surface being in electrical contact with said second conductor whereby said first conductor, second conductor, conductive top surface, conductive bottom surface and interleaved conductive layers are all mutually parallel, said capacitor element further comprising first and second conductive end terminations on said dielectric material end surfaces with alternating layers of said interleaved conductive layers being electrically connected and defining first and second groups of conductive layers, said first group of conductive layers terminating at said first conductive end termination and said second group of conductive layers terminating at said second conductive end termination, said top conductive surface being connected and substantially transverse to said first conductive end termination, said bottom conductive surface being connected and substantially transverse to said second conductive end termination, a first gap being defined between said top conductive surface and said second end termination and a second gap being defined between said bottom conductive surface and said first end termination, an electrically insulative cap being provided over each of said first and second conductive end terminations wherein said conductive end terminations are encapsulated and wherein electrical bridging in said gap between said top conductive surface and said second end termination and in said gap between said bottom conductive surface and said first end termination is precluded by said insulative caps; placing a first outer strip of electrically insulative material on said first conductor opposite said central insulative strip; placing a second outer strip of electrically insulative material on said second conductor opposite said central insulative strip; providing adhesive between said first and second conductors, first and second outer insulative strips and central insulative strip; and bonding the above elements to form a laminated assembly with said first and second conductors, first and second outer insulative strips and central insulative strip being bonded together.
Claim 3
Dependent Claim
32 words
The method of claim 1 including: providing electrically conductive adhesive between said capacitor element top conductive surface and said first conductor and said capacitor element bottom conductive surface and said second conductor.
Claim 4
Dependent Claim
33 words
The method of claim 2 wherein said electrically conductive adhesive is solder and including the step of: reflowing said solder after providing it between said capacitor element and said first and second conductors.
Claim 5
Dependent Claim
50 words
The method of claim 1 wherein said step of removing unwanted material from said first and second strips of electrically conductive material further includes the steps of: forming support structure for supporting said first and second conductors in said respective first and second conductive strips; and severing said support structure.
Claim 6
Dependent Claim
49 words
The method of claim 1 wherein said step of removing unwanted material from said electrically conductive material further includes the steps of: forming support structure for supporting said first and second leads and said dummy leads in said respective first and second conductive strips; and severing said support structure.
Claim 7
Dependent Claim
16 words
The method of claim 1 including: forming registration holes in said strips of electrically conductive material.
Claim 8
Dependent Claim
31 words
The method of claim 1 wherein: said active leads are at a first pair of diagonally opposed locations and said dummy leads are at a second pair of diagonally opposed locations.
Claim 9
Dependent Claim
17 words
The method of claim 1 wherein: said dielectric material of said capacitor element is a ceramic material.
Claim 10
Dependent Claim
16 words
The method of claim 1 including the step of: providing set-off means in said laminated assembly.
Claim 11
Dependent Claim
21 words
The method of claim 1 including the further step of: severing said laminated assembly from said first and second conductive strips.
Claim 12
Dependent Claim
11 words
The method of claim 1 wherein said windows are substantially rectangular.
Claim 13
Dependent Claim
23 words
The method of claim 1 wherein the bonding step comprises the steps of: heat tracking the elements; and hot press laminating the elements.
Claim 14
Dependent Claim
460 words
A capacitor including: a first electrical conductor; a second electrical conductor spaced from and in alignment with said first conductor; a first active lead extending from said first conductor at a first position; a second active lead extending from said second conductor at a second position; a first dummy lead associated with said first conductor, but electrically isolated therefrom at a third position; a second dummy lead associated with said second conductor, but electrically isolated therefrom at a fourth position; central electrically insulative material between said first and second conductors, said central insulative material having a window therethrough wherein said window defines a recess communicating between said first and second conductors; at least one multi-layer capacitive element in said recess and between said first and second conductors, said capacitive element having opposed first and second conductive top and bottom surfaces, said capacitive element further comprising dielectric material having a pair of opposed end surfaces and top and bottom surfaces with said conductive top and bottom surfaces on said respective top and bottom surfaces of said dielectric material, said capacitive element also having mutually parallel interleaved conductive layers between and parallel to said conductive top and bottom surfaces, with said top conductive surface being in electrical contact with said first conductor and said bottom conductive surface being in electrical contact with said second conductor whereby said first conductor, second conductor, conductive top surface, conductive bottom surface and interleaved conductive layers are all mutually parallel; first and second conductive end terminations on said dielectric material end surfaces with alternating layers of said interleaved conductive layers being electrically connected and defining first and second groups of conductive layers, said first group of conductive layers terminating at said first conductive end termination and said second group of conductive layers terminating at said second conductive end termination, said top conductive surface being connected and substantially transverse to said first conductive end termination, said bottom conductive surface being connected and substantially transverse to said second conductive end termination, a first gap being defined between said top conductive surface and said second end termination and a second gap being defined between said bottom conductive surface and said first end termination; an electrically insulative cap being provided over each of said first and second conductive end terminations wherein said conductive end terminations are encapsulated and wherein electrical bridging in said gap between said top conductive surface and said second end termination and in said gap between said bottom conductive surface and said first end termination is precluded by said insulative caps; electrically insulative material on said first conductor opposite said central insulative material; electrically insulative material on said second conductor opposite said central insulative material and; wherein the above elements are bonded together to form a laminated assembly.
Claim 15
Dependent Claim
460 words
A capacitor including: a first electrical conductor; a second electrical conductor spaced from and in alignment with said first conductor; a first active lead extending from said first conductor at a first position; a second active lead extending from said second conductor at a second position; a first dummy lead associated with said first conductor, but electrically isolated therefrom at a third position; a second dummy lead associated with said second conductor, but electrically isolated therefrom at a fourth position; central electrically insulative material between said first and second conductors, said central insulative material having a window therethrough wherein said window defines a recess communicating between said first and second conductors; at least one multi-layer capacitive element in said recess and between said first and second conductors, said capacitive element having opposed first and second conductive top and bottom surfaces, said capacitive element further comprising dielectric material having a pair of opposed end surfaces and top and bottom surfaces with said conductive top and bottom surfaces on said respective top and bottom surfaces of said dielectric material, said capacitive element also having mutually parallel interleaved conductive layers between and parallel to said conductive top and bottom surfaces, with said top conductive surface being in electrical contact with said first conductor and said bottom conductive surface being in electrical contact with said second conductor whereby said first conductor, second conductor, conductive top surface, conductive bottom surface and interleaved conductive layers are all mutually parallel; first and second conductive end terminations on said dielectric material end surfaces with alternating layers of said interleaved conductive layers being electrically connected and defining first and second groups of conductive layers, said first group of conductive layers terminating at said first conductive end termination and said second group of conductive layers terminating at said second conductive end termination, said top conductive surface being connected and substantially transverse to said first conductive end termination, said bottom conductive surface being connected and substantially transverse to said second conductive end termination, a first gap being defined between said top conductive surface and said second end termination and a second gap being defined between said bottom conductive surface and said first end termination; an electrically insulative cap being provided over each of said first and second conductive end terminations wherein said conductive end terminations are encapsulated and wherein electrical bridging in said gap between said top conductive surface and said second end termination and in said gap between said bottom conductive surface and said first end termination is precluded by said insulative caps; electrically insulative material on said first conductor opposite said central insulative material; electrically insulative material on said second conductor opposite said central insulative material and; wherein the above elements are bonded together to form a laminated assembly.
Claim 16
Dependent Claim
14 words
The capacitor of claim 13 wherein said elements are bonded together with an adhesive.
Claim 17
Dependent Claim
25 words
The capacitor of claim 13 wherein: said top and bottom conductive surfaces of said capacitive element are bonded to said first and second conductors, respectively.
Claim 18
Dependent Claim
23 words
The capacitor of claim 15 wherein: said bonding of said top and bottom conductive surfaces of said capacitive element is by conductive adhesive.
Claim 19
Dependent Claim
31 words
The capacitor of claim 13 wherein: said active leads are at a first pair of diagonally opposed locations and said dummy leads are at a second pair of diagonally opposed locations.
Claim 20
Dependent Claim
17 words
The capacitor of claim 13 wherein: said dielectric material of said capacitive element is a ceramic material.
Claim 21
Dependent Claim
21 words
The capacitor of claim 13 wherein: said cap is comprised of a material selected from the group comprising glass and epoxy.
Claim 22
Dependent Claim
12 words
The capacitor of claim 13 including: set-off means on said laminated assembly.
Claim 23
Dependent Claim
11 words
The capacitor of claim 13 wherein: said windows are subtantially rectangular.
Claim 24
Dependent Claim
490 words
An array of capacitors positioned between a pair of edge strips from which a pair of conductors and active and dummy leads of the capacitors are formed, each of said capacitors having: a first electrical conductor; a second electrical conductor spaced from and in alignment with said first conductor; a first active lead extending from said first conductor at a first position; a second active lead extending from said second conductor at a second position; a first dummy lead associated with said first conductor, but electrically isolated therefrom at a third position; a second dummy lead associated with said second conductor, but electrically isolated therefrom at a fourth position; central electrically insulative material between said first and second conductors, said central electrically insulative material having a window therethrough wherein said window defines a recess communicating between said first and second conductors; at least one multi-layer capacitive element in said recess and between said first and second conductors, said capacitive element having opposed first and second conductive top and bottom surfaces, said capacitive element further comprising dielectric material having a pair of opposed end surfaces and top and bottom surfaces with said conductive top and bottom surfaces on said respective top and bottom surfaces of said dielectric material, said capacitive element also having mutually parallel interleaved conductive layers between and parallel to said conductive top and bottom surfaces, with said top conductive surface being in electrical contact with said first conductor and said bottom conductive surface being in electrical contact with said second conductor whereby said first conductor, second conductor, conductive top surface, conductive bottom surface and interleaved conductive layers are all mutually parallel; first and second conductive end terminations on said dielectric material end surfaces with alternating layers of said interleaved conductive layers being electrically connected and defining first and second groups of conductive layers, said first group of conductive layers terminating at said first conductive end termination and said second group of conductive layers terminating at said second conductive end termination, said top conductive surface being connected and substantially transverse to said first conductive end termination, said bottom conductive surface being connected and substantially transverse to said second conductive end termination, a first gap being defined between said top conductive surface and said second end termination and a second gap being defined between said bottom conductive surface and said first end termination; an electrically insulative cap being provided over each of said first and second conductive end terminations wherein said conductive end terminations are encapsulated and wherein electrical bridging in said gap between said top conductive surface and said second end termination and in said gap between said bottom conductive surface and said first end termination is precluded by said insulative caps; electrically insulative material on said first conductor opposite said central insulative material; electrically insulative material on said second conductor opposite said central insulative material; and wherein the above elements are bonded together to form a laminated assembly.
Claim 25
Dependent Claim
490 words
An array of capacitors positioned between a pair of edge strips from which a pair of conductors and active and dummy leads of the capacitors are formed, each of said capacitors having: a first electrical conductor; a second electrical conductor spaced from and in alignment with said first conductor; a first active lead extending from said first conductor at a first position; a second active lead extending from said second conductor at a second position; a first dummy lead associated with said first conductor, but electrically isolated therefrom at a third position; a second dummy lead associated with said second conductor, but electrically isolated therefrom at a fourth position; central electrically insulative material between said first and second conductors, said central electrically insulative material having a window therethrough wherein said window defines a recess communicating between said first and second conductors; at least one multi-layer capacitive element in said recess and between said first and second conductors, said capacitive element having opposed first and second conductive top and bottom surfaces, said capacitive element further comprising dielectric material having a pair of opposed end surfaces and top and bottom surfaces with said conductive top and bottom surfaces on said respective top and bottom surfaces of said dielectric material, said capacitive element also having mutually parallel interleaved conductive layers between and parallel to said conductive top and bottom surfaces, with said top conductive surface being in electrical contact with said first conductor and said bottom conductive surface being in electrical contact with said second conductor whereby said first conductor, second conductor, conductive top surface, conductive bottom surface and interleaved conductive layers are all mutually parallel; first and second conductive end terminations on said dielectric material end surfaces with alternating layers of said interleaved conductive layers being electrically connected and defining first and second groups of conductive layers, said first group of conductive layers terminating at said first conductive end termination and said second group of conductive layers terminating at said second conductive end termination, said top conductive surface being connected and substantially transverse to said first conductive end termination, said bottom conductive surface being connected and substantially transverse to said second conductive end termination, a first gap being defined between said top conductive surface and said second end termination and a second gap being defined between said bottom conductive surface and said first end termination; an electrically insulative cap being provided over each of said first and second conductive end terminations wherein said conductive end terminations are encapsulated and wherein electrical bridging in said gap between said top conductive surface and said second end termination and in said gap between said bottom conductive surface and said first end termination is precluded by said insulative caps; electrically insulative material on said first conductor opposite said central insulative material; electrically insulative material on said second conductor opposite said central insulative material; and wherein the above elements are bonded together to form a laminated assembly.
Claim 26
Dependent Claim
16 words
The array of capacitors of claim 22 wherein said elements are bonded together with an adhesive.
Claim 27
Dependent Claim
27 words
The array of capacitors of claim 22 wherein: said top and bottom conductive surfaces of said capacitive element are bonded to said first and second conductors, respectively.
Claim 28
Dependent Claim
23 words
The array of capacitors 24 wherein: said bonding of said top and bottom conductive surfaces of said capacitive element is by conductive adhesive.
Claim 29
Dependent Claim
23 words
The array of capacitors 24 wherein: said bonding of said top and bottom conductive surfaces of said capacitive element is by conductive adhesive.
Claim 30
Dependent Claim
33 words
The array of capacitors of claim 22 wherein: said active leads are at a first pair of diagonally opposed locations and said dummy leads are at a second pair of diagonally opposed locations.
Claim 31
Dependent Claim
17 words
The array of capacitors 22 wherein: said dielectric material of said capacitive element is a ceramic material.
Claim 32
Dependent Claim
17 words
The array of capacitors 22 wherein: said dielectric material of said capacitive element is a ceramic material.
Claim 33
Dependent Claim
23 words
The array of capacitors of claim 22 wherein: said cap is comprised of a material selected from the group comprising glass and epoxy.
Claim 34
Dependent Claim
14 words
The array of capacitors of claim 22 including: set-off means on said laminated assembly.
Claim 35
Dependent Claim
13 words
The array of capacitors of claim 22 wherein: said windows are subtantially rectangular.
Claim 36
Dependent Claim
291 words
A multi-layer capacitor element comprising: dielectric material having a pair of opposed end surfaces and having top and bottom surfaces; a plurality of parallel conductive layers interleaved within said dielectric material with alternating layers of conductive material being electrically connected and defining first and second groups of conductive layers, said first group having at least one exposed conductive layer on said top surface of said dielectric material defining a first exposed conductive layer and said second group having at least one exposed conductive layer on said bottom surface of said dielectric material defining a second exposed conductive layer; a first conductive end termination on one of said opposed end surfaces of said dielectric material and a second conductive end termination on the other of said opposed end surfaces of said dielectric material; said first group of conductive layers terminating at said first conductive end termination and said second group of conductive layers terminating at said second conductive end termination, said first exposed conductive layer being connected and substantially transverse to said first conductive end termination, said second exposed conductive layer being connected and substantially transverse to said second conductive end termination, a first gap being defined between said first exposed conductive layer and said second end termination and a second gap being defined between said second exposed conductive layer and said first end termination; and an electrically insulative cap being provided over each of said first and second conductive end terminations wherein said conductive end terminations are encapsulated and wherein electrical bridging in said first gap between said first exposed conductive layer and said second conductive end termination and in said second gap between said second exposed conductive layer and said first conductive end termination is precluded by said insulative caps.
Claim 37
Dependent Claim
291 words
A multi-layer capacitor element comprising: dielectric material having a pair of opposed end surfaces and having top and bottom surfaces; a plurality of parallel conductive layers interleaved within said dielectric material with alternating layers of conductive material being electrically connected and defining first and second groups of conductive layers, said first group having at least one exposed conductive layer on said top surface of said dielectric material defining a first exposed conductive layer and said second group having at least one exposed conductive layer on said bottom surface of said dielectric material defining a second exposed conductive layer; a first conductive end termination on one of said opposed end surfaces of said dielectric material and a second conductive end termination on the other of said opposed end surfaces of said dielectric material; said first group of conductive layers terminating at said first conductive end termination and said second group of conductive layers terminating at said second conductive end termination, said first exposed conductive layer being connected and substantially transverse to said first conductive end termination, said second exposed conductive layer being connected and substantially transverse to said second conductive end termination, a first gap being defined between said first exposed conductive layer and said second end termination and a second gap being defined between said second exposed conductive layer and said first end termination; and an electrically insulative cap being provided over each of said first and second conductive end terminations wherein said conductive end terminations are encapsulated and wherein electrical bridging in said first gap between said first exposed conductive layer and said second conductive end termination and in said second gap between said second exposed conductive layer and said first conductive end termination is precluded by said insulative caps.
Claim 38
Dependent Claim
24 words
The multi-layer capacitor element of claim 31 wherein: said insulative cap is comprised of a material selected from the group comprising glass and epoxy.
Claim 39
Dependent Claim
13 words
The capacitor of claim 31 wherein: said dielectric material is a ceramic material.
Claim 40
Dependent Claim
311 words
A multi-layer capacitive element comprising: interleaved layers of conductive material and dielectric material with alternating layers of conductive material being electrically connected and defining first and second groups of conductive layers, said first group having at least one exposed conductive layer defining a first exposed conductive layer and said second group having at least one exposed conductive layer defining a second exposed conductive layer, said first and second groups of conductive layers being mutually parallel to each other; said dielectric material including a pair of opposed end surfaces and top and bottom surfaces, said first exposed conductive layer being disposed on said top surface and said second exposed conductive layer being disposed on said bottom surface; a first conductive end termination on one of said opposed end surfaces of said dielectric material and a second conductive end termination on the other of said opposed end surfaces of said dielectric material; said first group of alternating conductive layers terminating at said first conductive end termination and said second group of alternating conductive layers terminating at said second conductive end termination, said first exposed conductive layer being connected and substantially transverse to said first conductive end termination, said second exposed conductive layer being connected and substantially transverse to said second conductive end termination, a first gap being defined between said first exposed conductive layer and said second end termination and a second gap being defined between said second exposed conductive layer and said second end termination; and an electrically insulative cap being provided over each of said first and second conductive end terminations wherein said conductive end terminations are encapsulated and wherein electrical bridging in said first gap between said first exposed conductive layer and said second conductive end termination and in said second gap between said second exposed conductive layer and said first conductive end termination is precluded by said insulative caps.
Claim 41
Dependent Claim
311 words
A multi-layer capacitive element comprising: interleaved layers of conductive material and dielectric material with alternating layers of conductive material being electrically connected and defining first and second groups of conductive layers, said first group having at least one exposed conductive layer defining a first exposed conductive layer and said second group having at least one exposed conductive layer defining a second exposed conductive layer, said first and second groups of conductive layers being mutually parallel to each other; said dielectric material including a pair of opposed end surfaces and top and bottom surfaces, said first exposed conductive layer being disposed on said top surface and said second exposed conductive layer being disposed on said bottom surface; a first conductive end termination on one of said opposed end surfaces of said dielectric material and a second conductive end termination on the other of said opposed end surfaces of said dielectric material; said first group of alternating conductive layers terminating at said first conductive end termination and said second group of alternating conductive layers terminating at said second conductive end termination, said first exposed conductive layer being connected and substantially transverse to said first conductive end termination, said second exposed conductive layer being connected and substantially transverse to said second conductive end termination, a first gap being defined between said first exposed conductive layer and said second end termination and a second gap being defined between said second exposed conductive layer and said second end termination; and an electrically insulative cap being provided over each of said first and second conductive end terminations wherein said conductive end terminations are encapsulated and wherein electrical bridging in said first gap between said first exposed conductive layer and said second conductive end termination and in said second gap between said second exposed conductive layer and said first conductive end termination is precluded by said insulative caps.
Claim 42
Dependent Claim
24 words
The multi-layer capacitive element of claim 34 wherein: said insulative cap is comprised of a material selected from the group comprising glass and epoxy.
Claim 43
Dependent Claim
15 words
The multi-layer capacitive element of claim 34 wherein: said dielectric material is a ceramic material.
Claim 44
Independent Claim
517 words
A method of making a capacitor, including the steps of: removing unwanted material from a first strip of electrically conductive material to define a first conductor having at least a first lead connected thereto; removing unwanted material from a second strip of electrically conductive material to define a second conductor having at least a second lead connected thereto, said first and second conductive strips being spaced apart and parallel with said first and second conductors in alignment with one another; placing a central strip of electrically insulative material between said first and second conductors, said central insulative strip having windows therethrough wherein each of said windows define a recess communicating between said first and second conductors; placing at least one multi-layer capacitor element in said recess and between said first and second conductors, said capacitor element having opposed first and second conductive top and bottom surfaces, said capacitor element further comprising dielectric material having a pair of opposed end surfaces and top and bottom surfaces with said conductive top and bottom surfaces on said respective top and bottom surfaces of said dielectric material, said capacitor element also having mutually parallel interleaved conductive layers between and parallel to said conductive top and bottom surfaces, with said top conductive surface being in electrical contact with said first conductor and said bottom conductive surface being in electrical contact with said second conductor whereby said first conductor, second conductor, conductive top surface, conductive bottom surface and interleaved conductive layers are all mutually parallel, said capacitor element further comprising first and second conductive end terminations on said dielectric material end surfaces with alternating layers of said interleaved conductive layers being electrically connected and defining first and second groups of conductive layers, said first group of conductive layers terminating at said first conductive end termination and said second group of conductive layers terminating at said second conductive end termination, said top conductive surface being connected and substantially transverse to said first conductive end termination, said bottom conductive surface being connected and substantially transverse to said second conductive end termination, a first gap being defined between said top conductive surface and said second end termination and a second gap being defined between said bottom conductive surface and said first end termination, an electrically insulative cap being provided over each of said first and second conductive end terminations wherein said conductive end terminations are encapsulated and wherein electrical bridging in said gap between said top conductive surface and said second end termination and in said gap between said bottom conductive surface and said first end termination is precluded by said insulative caps; placing a first outer strip of electrically insulative material on said first conductor opposite said central insulative strip; placing a second outer strip of electrically insulative material on said second conductor opposite said central insulative strip; providing adhesive between said first and second conductors, first and second outer insulative strips and central insulative strip; and bonding the above elements to form a laminated assembly with said first and second conductors, first and second outer insulative strips and central insulative strip being bonded together.
Claim 45
Independent Claim
517 words
A method of making a capacitor, including the steps of: removing unwanted material from a first strip of electrically conductive material to define a first conductor having at least a first lead connected thereto; removing unwanted material from a second strip of electrically conductive material to define a second conductor having at least a second lead connected thereto, said first and second conductive strips being spaced apart and parallel with said first and second conductors in alignment with one another; placing a central strip of electrically insulative material between said first and second conductors, said central insulative strip having windows therethrough wherein each of said windows define a recess communicating between said first and second conductors; placing at least one multi-layer capacitor element in said recess and between said first and second conductors, said capacitor element having opposed first and second conductive top and bottom surfaces, said capacitor element further comprising dielectric material having a pair of opposed end surfaces and top and bottom surfaces with said conductive top and bottom surfaces on said respective top and bottom surfaces of said dielectric material, said capacitor element also having mutually parallel interleaved conductive layers between and parallel to said conductive top and bottom surfaces, with said top conductive surface being in electrical contact with said first conductor and said bottom conductive surface being in electrical contact with said second conductor whereby said first conductor, second conductor, conductive top surface, conductive bottom surface and interleaved conductive layers are all mutually parallel, said capacitor element further comprising first and second conductive end terminations on said dielectric material end surfaces with alternating layers of said interleaved conductive layers being electrically connected and defining first and second groups of conductive layers, said first group of conductive layers terminating at said first conductive end termination and said second group of conductive layers terminating at said second conductive end termination, said top conductive surface being connected and substantially transverse to said first conductive end termination, said bottom conductive surface being connected and substantially transverse to said second conductive end termination, a first gap being defined between said top conductive surface and said second end termination and a second gap being defined between said bottom conductive surface and said first end termination, an electrically insulative cap being provided over each of said first and second conductive end terminations wherein said conductive end terminations are encapsulated and wherein electrical bridging in said gap between said top conductive surface and said second end termination and in said gap between said bottom conductive surface and said first end termination is precluded by said insulative caps; placing a first outer strip of electrically insulative material on said first conductor opposite said central insulative strip; placing a second outer strip of electrically insulative material on said second conductor opposite said central insulative strip; providing adhesive between said first and second conductors, first and second outer insulative strips and central insulative strip; and bonding the above elements to form a laminated assembly with said first and second conductors, first and second outer insulative strips and central insulative strip being bonded together.
Claim 46
Dependent Claim
32 words
The method of claim 37 including: providing electrically conductive adhesive between said capacitor element top conductive surface and said first conductor and said capacitor element bottom conductive surface and said second conductor.
Claim 47
Dependent Claim
33 words
The method of claim 38 wherein said electrically conductive adhesive is solder and including the step of: reflowing said solder after providing it between said capacitor element and said first and second conductors.
Claim 48
Dependent Claim
50 words
The method of claim 37 wherein said step of removing unwanted material from said first and second strips of electrically conductive material further includes the steps of: forming support structure for supporting said first and second conductors in said respective first and second conductive strips; and severing said support structure.
Claim 49
Dependent Claim
45 words
The method of claim 37 wherein said step of removing unwanted material from said electrically conductive material further includes the steps of: forming support structure for supporting said first and second leads in said respective first and second conductive strips; and severing said support structure.
Claim 50
Dependent Claim
16 words
The method of claim 37 including: forming registration holes in said strips of electrically conductive material.
Claim 51
Dependent Claim
17 words
The method of claim 37 wherein: said dielectric material of said capacitor element is a ceramic material.
Claim 52
Dependent Claim
16 words
The method of claim 37 including the step of: providing set-off means in said laminated assembly.
Claim 53
Dependent Claim
21 words
The method of claim 37 including the further step of: severing said laminated assembly from said first and second conductive strips.
Claim 54
Dependent Claim
11 words
The method of claim 37 wherein said windows are substantially rectangular.
Claim 55
Dependent Claim
23 words
The method of claim 37 wherein the bonding step comprises the steps of: heat tracking the elements; and hot press laminating the elements.
Claim 56
Dependent Claim
427 words
A capacitor including: a first electrical conductor; a second electrical conductor spaced from an in alignment with said first conductor; at least a first lead extending from said first conductor; at least a second lead extending from said second conductor; central insulative material between said first and second conductors, said central insulative material having a window therethrough wherein said window defines a recess communicating between said first and second conductors; at least one multi-layer capacitive element in said recess and between said first and second conductors, said capacitive element having opposed first and second conductive top and bottom surfaces, said capacitive element further comprising dielectric material having a pair of opposed end surfaces, opposed top and bottom surfaces and a pair of opposed side surfaces, with said conductive top and bottom surfaces on said respective top and bottom surfaces of said dielectric material, said capacitive element also having mutually parallel interleaved conductive layers between and parallel to said conductive top and bottom surfaces, with said top conductive surface being in electrical contact with said first conductor and said bottom conductive surface being in electrical contact with said second conductor whereby said first conductor, second conductor, conductive top surface, conductive bottom surface and interleaved conductive layers are all mutually parallel; first and second conductive end terminations on said dielectric material end surfaces with alternating layers of said interleaved conductive layers being electrically connected and defining first and second groups of conductive layers, said first group of conductive layers terminating at said first conductive end termination and said second group of conductive layers terminating at said second conductive end termination, said top conductive surface being connected and substantially transverse to said first conductive end termination, said bottom conductive surface being connected and substantially transverse to said second conductive end termination, a first gap being defined between said top conductive surface and said second end termination and a second gap being defined between said bottom conductive surface and said first end termination; an electrically insulative cap being provided over each of said first and second conductive end terminations wherein said conductive end terminations are encapsulated and wherein electrical bridging in said gap between said top conductive surface and said second end termination and in said gap between said bottom conductive surface and said first end termination is precluded by said insulative caps; electrically insulative material on said first conductor opposite said central insulative material; and electrically insulative material on said second conductor opposite said central insulative material; and wherein the above elements are bonded together to form a laminated assembly.
Claim 57
Dependent Claim
427 words
A capacitor including: a first electrical conductor; a second electrical conductor spaced from an in alignment with said first conductor; at least a first lead extending from said first conductor; at least a second lead extending from said second conductor; central insulative material between said first and second conductors, said central insulative material having a window therethrough wherein said window defines a recess communicating between said first and second conductors; at least one multi-layer capacitive element in said recess and between said first and second conductors, said capacitive element having opposed first and second conductive top and bottom surfaces, said capacitive element further comprising dielectric material having a pair of opposed end surfaces, opposed top and bottom surfaces and a pair of opposed side surfaces, with said conductive top and bottom surfaces on said respective top and bottom surfaces of said dielectric material, said capacitive element also having mutually parallel interleaved conductive layers between and parallel to said conductive top and bottom surfaces, with said top conductive surface being in electrical contact with said first conductor and said bottom conductive surface being in electrical contact with said second conductor whereby said first conductor, second conductor, conductive top surface, conductive bottom surface and interleaved conductive layers are all mutually parallel; first and second conductive end terminations on said dielectric material end surfaces with alternating layers of said interleaved conductive layers being electrically connected and defining first and second groups of conductive layers, said first group of conductive layers terminating at said first conductive end termination and said second group of conductive layers terminating at said second conductive end termination, said top conductive surface being connected and substantially transverse to said first conductive end termination, said bottom conductive surface being connected and substantially transverse to said second conductive end termination, a first gap being defined between said top conductive surface and said second end termination and a second gap being defined between said bottom conductive surface and said first end termination; an electrically insulative cap being provided over each of said first and second conductive end terminations wherein said conductive end terminations are encapsulated and wherein electrical bridging in said gap between said top conductive surface and said second end termination and in said gap between said bottom conductive surface and said first end termination is precluded by said insulative caps; electrically insulative material on said first conductor opposite said central insulative material; and electrically insulative material on said second conductor opposite said central insulative material; and wherein the above elements are bonded together to form a laminated assembly.
Claim 58
Dependent Claim
14 words
The capacitor of claim 48 wherein said elements are bonded together with an adhesive.
Claim 59
Dependent Claim
25 words
The capacitor of claim 48 wherein: said top and bottom conductive surfaces of said capacitive element are bonded to said first and second conductors, respectively.
Claim 60
Dependent Claim
23 words
The capacitor of claim 50 wherein: said bonding of said top and bottom conductive surfaces of said capacitive element is by conductive adhesive.
Claim 61
Dependent Claim
17 words
The capacitor of claim 48 wherein: said dielectric material of said capacitive element is a ceramic material.
Claim 62
Dependent Claim
21 words
The capacitor of claim 48 wherein: said cap is comprised of a material selected from the group comprising glass and epoxy.
Claim 63
Dependent Claim
12 words
The capacitor of claim 48 including: set-off means in said laminated assembly.
Claim 64
Dependent Claim
11 words
The capacitor of claim 48 wherein: said windows are substantially rectangular.
Claim 65
Dependent Claim
443 words
An array of capacitors positioned between a pair of edge strips from which a pair of conductors and leads of the capacitors are formed, each of said capacitors having: a first electrical conductor; a second electrical conductor spaced from and in alignment with said first conductor; a first lead extending from said first conductor; a second lead extending from said second conductor; central electrically insulative material between said first and second conductors, said central electrically insulative material having a window therethrough wherein said window defines a recess communicating between said first and second conductors; at least one multi-layer capacitive element in said recess and between said first and second conductors, said capacitive element having opposed first and second conductive top and bottom surfaces, said capacitive element further comprising dielectric material having a pair of opposed end surfaces and top and bottom surfaces with said conductive top and bottom surfaces on said respective top and bottom surfaces of said dielectric material, said capacitive element also having mutually parallel interleaved conductive layers between and parallel to said conductive top and bottom surfaces, with said top conductive surface being in electrical contact with said first conductor and said bottom conductive surface being in electrical contact with said second conductor whereby said first conductor, second conductor, conductive top surface, conductive bottom surface and interleaved conductive layers are all mutually parallel; first and second conductive end terminations on said dielectric material end surfaces with alternating layers of said interleaved conductive layers being electrically connected and defining first and second groups of conductive layers, said first group of conductive layers terminating at said first conductive end termination and said second group of conductive layers terminating at said second conductive end termination, said top conductive surface being connected and substantially transverse to said first conductive end termination, said bottom conductive surface being connected and substantially transverse to said second conductive end termination, a first gap being defined between said top conductive surface and said second end termination and a second gap being defined between said bottom conductive surface and said first end termination; an electrically insulative cap being provided over each of said first and second conductive end terminations wherein said conductive end terminations are encapsulated and wherein electrical bridging in said gap between said top conductive surface and said second end termination and in said gap between said bottom conductive surface and said first end termination is precluded by said insulative caps; electrically insulative material on said first conductor opposite said central insulative material; electrically insulative material on said second conductor opposite said central insulative material; and wherein the above elements are bonded together to form a laminated assembly.
Claim 66
Dependent Claim
443 words
An array of capacitors positioned between a pair of edge strips from which a pair of conductors and leads of the capacitors are formed, each of said capacitors having: a first electrical conductor; a second electrical conductor spaced from and in alignment with said first conductor; a first lead extending from said first conductor; a second lead extending from said second conductor; central electrically insulative material between said first and second conductors, said central electrically insulative material having a window therethrough wherein said window defines a recess communicating between said first and second conductors; at least one multi-layer capacitive element in said recess and between said first and second conductors, said capacitive element having opposed first and second conductive top and bottom surfaces, said capacitive element further comprising dielectric material having a pair of opposed end surfaces and top and bottom surfaces with said conductive top and bottom surfaces on said respective top and bottom surfaces of said dielectric material, said capacitive element also having mutually parallel interleaved conductive layers between and parallel to said conductive top and bottom surfaces, with said top conductive surface being in electrical contact with said first conductor and said bottom conductive surface being in electrical contact with said second conductor whereby said first conductor, second conductor, conductive top surface, conductive bottom surface and interleaved conductive layers are all mutually parallel; first and second conductive end terminations on said dielectric material end surfaces with alternating layers of said interleaved conductive layers being electrically connected and defining first and second groups of conductive layers, said first group of conductive layers terminating at said first conductive end termination and said second group of conductive layers terminating at said second conductive end termination, said top conductive surface being connected and substantially transverse to said first conductive end termination, said bottom conductive surface being connected and substantially transverse to said second conductive end termination, a first gap being defined between said top conductive surface and said second end termination and a second gap being defined between said bottom conductive surface and said first end termination; an electrically insulative cap being provided over each of said first and second conductive end terminations wherein said conductive end terminations are encapsulated and wherein electrical bridging in said gap between said top conductive surface and said second end termination and in said gap between said bottom conductive surface and said first end termination is precluded by said insulative caps; electrically insulative material on said first conductor opposite said central insulative material; electrically insulative material on said second conductor opposite said central insulative material; and wherein the above elements are bonded together to form a laminated assembly.
Claim 67
Dependent Claim
14 words
The array of capacitors 56 wherein said elements are bonded together with an adhesive.
Claim 68
Dependent Claim
14 words
The array of capacitors 56 wherein said elements are bonded together with an adhesive.
Claim 69
Dependent Claim
27 words
The array of capacitors of claim 56 wherein: said top and bottom conductive surfaces of said capacitive element are bonded to said first and second conductors, respectively.
Claim 70
Dependent Claim
26 words
The array of capacitors of claim 56 wherein: said bonding of said top and bottom conductive surfaces of said capacitive element is by a conductive adhesive.
Claim 71
Dependent Claim
19 words
The array of capacitors of claim 56 wherein: said dielectric material of said capacitive element is a ceramic material.
Claim 72
Dependent Claim
24 words
The array of capacitors of claim 56 wherein: said cap is formed of a material selected from the group consisting of glass and epoxy.
Claim 73
Dependent Claim
14 words
The array of capacitors of claim 56 including: set-off means in said laminated assembly.
Claim 74
Dependent Claim
11 words
The capacitor of claim 56 wherein: said windows are substantially rectangular.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-05-31 | 1991-11-30 | 1992-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-31 | 1995-11-30 | 1996-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-31 | 1999-11-30 | 2000-05-31 | $7700.00 | Window Closed / Lapsed |