US4435738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multilayer ceramic capacitors
Assignee: Kemet Electronics Corp
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Filing: 1981-05-27
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Granted: 1984-03-06
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Expires: 2001-05-27
Abstract
Abstract A multilayer ceramic capacitor is provided which is formed from ceramic sheets having electrodes on opposite surfaces which are separated by non-electroded ceramic sheets.
Inventors
- 👤 Flavil Barber, Jr.
- 👤 Emmanuel E. Karam
- 👤 Richard Dunaway
- 👤 Ray L. Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:44
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/30; B; B28; B28B; B28B1/00; B28B1/002; B28B13/00; B28B13/02; B28B13/0205; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
173 words
Method of forming a ceramic capacitor which comprises providing an electroded ceramic sheet capable of being handled and cut into stackable plates having a plurality of electrodes of a predetermined size on both of the opposite surfaces of said sheet with electrodes on one surface being in register with electrodes on the other surface except at selected opposite edge portions; providing a separate non-electroded green ceramic sheet capable of being handled and cut into stackable plates which is the same as the electroded ceramic sheet except for the absence of electrodes' said non-electroded green ceramic sheet having a surface thereof closely adjacent and opposite a surface of said electroded green ceramic sheet; simultaneously cutting, and stacking and laminating said adjacent separate electroded and non-electroded sheets to form a stack of separate electroded and non-electroded green ceramic plates with alternate electroded green ceramic plates having opposing electrodes thereon exposed at opposite edges and said alternate electroded plates being separated by a non-electroded green ceramic plate; and firing said body to mature the green ceramic.
Claim 2
Dependent Claim
173 words
Method of forming a ceramic capacitor which comprises providing an electroded ceramic sheet capable of being handled and cut into stackable plates having a plurality of electrodes of a predetermined size on both of the opposite surfaces of said sheet with electrodes on one surface being in register with electrodes on the other surface except at selected opposite edge portions; providing a separate non-electroded green ceramic sheet capable of being handled and cut into stackable plates which is the same as the electroded ceramic sheet except for the absence of electrodes' said non-electroded green ceramic sheet having a surface thereof closely adjacent and opposite a surface of said electroded green ceramic sheet; simultaneously cutting, and stacking and laminating said adjacent separate electroded and non-electroded sheets to form a stack of separate electroded and non-electroded green ceramic plates with alternate electroded green ceramic plates having opposing electrodes thereon exposed at opposite edges and said alternate electroded plates being separated by a non-electroded green ceramic plate; and firing said body to mature the green ceramic.
Claim 3
Dependent Claim
37 words
An unfired green ceramic capacitor body comprising a stack of separate green ceramic plates of the same thickness, alternate plates having opposing electrodes thereon and said alternate plates being separated by a plate of non-electroded green ceramic.
Claim 4
Dependent Claim
37 words
An unfired green ceramic capacitor body comprising a stack of separate green ceramic plates of the same thickness, alternate plates having opposing electrodes thereon and said alternate plates being separated by a plate of non-electroded green ceramic.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-03-06 | 1987-09-05 | 1988-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-06 | 1991-09-05 | 1992-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-06 | 1995-09-05 | 1996-03-06 | $7700.00 | Window Closed / Lapsed |