IL41904A - Sintered ceramic bodies for use as electrical components and their manufacture - Google Patents
Sintered ceramic bodies for use as electrical components and their manufactureInfo
- Publication number
- IL41904A IL41904A IL41904A IL4190473A IL41904A IL 41904 A IL41904 A IL 41904A IL 41904 A IL41904 A IL 41904A IL 4190473 A IL4190473 A IL 4190473A IL 41904 A IL41904 A IL 41904A
- Authority
- IL
- Israel
- Prior art keywords
- regions
- structured
- open
- ceramic
- dense
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/30—Stacked capacitors
- H01G4/302—Stacked capacitors obtained by injection of metal in cavities formed in a ceramic body
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/101—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by casting or moulding of conductive material
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4611—Manufacturing multilayer circuits by laminating two or more circuit boards
- H05K3/4626—Manufacturing multilayer circuits by laminating two or more circuit boards characterised by the insulating layers or materials
- H05K3/4629—Manufacturing multilayer circuits by laminating two or more circuit boards characterised by the insulating layers or materials laminating inorganic sheets comprising printed circuits, e.g. green ceramic sheets
Abstract
To avoid the use of rare metal electrodes in the manufacture of capacitors and hence to avoid firing of the conductive material, the particular end zone of the sintered ceramic object is provided with a metal-containing boundary layer. These boundary layers can then represent end electrodes and can also contain a ceramic material.
[GB1424879A]
Claims (1)
1. 41904 '· CLAIMS . 1· A process for making a sintered, ceramic body having electrodes or conductors, including providing sheets of a finely divided, electrical^ Jjasulatlng or dielectric, ceramic composition bonded with a fugitive bond, said composition forming a dense layer - when fired to sintering temperature, introducing between ceramic said sheets a deposit of a second/ composition having a fugitive bond, said composition developing an open structure when fired, consolidating a plurality of said sheets and intervening deposits whereby to obtain a fugiUjre-bonded, self-sustaining body, heating said body to eliminate said fugitive bonds, firing said body to sintering temperature to produce a sintered, monolithic body having regions of dense, ceramic material and at least at one open-structured region having a network of interconnected voids or pores between said dense regions and extending to an exterior surface of said sintered, monolithic body, and introducing a conductive material into said open-structured regions by impregnating them with a molten metal, preferably after evacuation of said regions, characterized by providing said edge regions of said sintered, monolithic body with penetrable barriers and forcing said molten metal or metal alloy through said barriers into said open-structured regions* 2, A process according to claim 1, characterized in that said penetrable barriers are end-termination electrodes* 3o A process according to claim 1 or 2, characterized 41904/3 in that said penetrable barriers are of ceramic material. 4. A process according to claims 1-3» characterized in that in said sintered, monolithic body, said regions of dense, ceramic material and said open-structured regions form alternating strata, 5. A process according to claims 1-4, characterised by forming a plurality of regions of dense, electrically insulating or dielectric, ceramic composition and a region of ceramic material havin an openetructure between said first-mentioned regions, said open-structured region extending to an edge region of said bodyaand having a substantial portion of its volume composed of interconnected voids, said process comprising impregnating said open-structured region with molten metal or metal alloy. 6. A process according to claims 1-5, characterized by forming a plurality of regions of dense, electrically insulating or dielectric, ceramic composition and a plurality of open-structured regions which form separate, open-structured, spaced strata, said open-structured strata alternating with strata of dense, dielectric, ceramiCjpomposition and extending to edge regions of said body, and alternate ones of said open-structured strata extending to the same edge region, 7. A sintered, unitary, ceramic body made in accordance with claims 1-6, having a plurality of regions of a dense, electric-^ all insulating or dielectric, ceramic composition, a least one region ofopeh-structured, ceramic material between said fijs-mentioned regions and extending to an edge region of said 41904/3 8. A body according to claim 7, characterized by a pluralit of such open-structured regions. 9. -A' body according to claim 7 or 8, characterized by strata of dense, dielectric, ceramic composition alternating with strata o said open-structured material. 10. A body accordin to claims 7-9* characterized in that alternate open-structured strata extend to different edge regions of said body. 11. A body according to claims 7-10, characterized in that said penetrable barriers are end termination electrodes. 12. A body according to claims 7-10, characterized in that said penetrable barriers are ceramic. HE:HE
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US27466872A | 1972-07-24 | 1972-07-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IL41904A true IL41904A (en) | 1976-03-31 |
Family
ID=23049144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL41904A IL41904A (en) | 1972-07-24 | 1973-03-28 | Sintered ceramic bodies for use as electrical components and their manufacture |
Country Status (14)
| Country | Link |
|---|---|
| JP (1) | JPS547007B2 (en) |
| BE (1) | BE798874R (en) |
| BR (1) | BR7303385D0 (en) |
| CA (1) | CA1088641A (en) |
| CH (1) | CH613923A5 (en) |
| ES (1) | ES414234A2 (en) |
| GB (1) | GB1424879A (en) |
| IE (1) | IE37623B1 (en) |
| IL (1) | IL41904A (en) |
| IT (1) | IT1045344B (en) |
| NO (1) | NO135157C (en) |
| PH (2) | PH11703A (en) |
| SE (1) | SE404101B (en) |
| ZA (1) | ZA733086B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5225253A (en) * | 1975-08-21 | 1977-02-25 | Murata Manufacturing Co | Method of manufacturing laminated ceramic capacitor |
| GB2103422B (en) * | 1981-07-30 | 1985-02-27 | Standard Telephones Cables Ltd | Ceramic capacitors |
| GB2119571B (en) * | 1982-03-30 | 1985-12-11 | Standard Telephones Cables Ltd | Terminals for multilayer ceramic dielectric capacitors |
| GB9011034D0 (en) * | 1990-05-16 | 1990-07-04 | Programme 3 Patent Holdings | Electrochemical cell |
-
1973
- 1973-03-28 IL IL41904A patent/IL41904A/en unknown
- 1973-04-03 CA CA167,849A patent/CA1088641A/en not_active Expired
- 1973-04-03 IT IT22545/73A patent/IT1045344B/en active
- 1973-04-27 BE BE130552A patent/BE798874R/en active
- 1973-04-30 CH CH618473A patent/CH613923A5/en not_active IP Right Cessation
- 1973-04-30 ES ES414234A patent/ES414234A2/en not_active Expired
- 1973-04-30 NO NO1768/73A patent/NO135157C/no unknown
- 1973-05-07 ZA ZA00733086A patent/ZA733086B/en unknown
- 1973-05-09 SE SE7306516A patent/SE404101B/en unknown
- 1973-05-10 BR BR3385/73A patent/BR7303385D0/en unknown
- 1973-05-11 IE IE748/73A patent/IE37623B1/en unknown
- 1973-05-11 PH PH14613A patent/PH11703A/en unknown
- 1973-05-12 JP JP5303773A patent/JPS547007B2/ja not_active Expired
- 1973-05-14 GB GB2292973A patent/GB1424879A/en not_active Expired
-
1974
- 1974-02-18 PH PH15523A patent/PH10955A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE798874R (en) | 1973-08-16 |
| CA1088641A (en) | 1980-10-28 |
| DE2323921A1 (en) | 1974-02-07 |
| NO135157B (en) | 1976-11-08 |
| IE37623B1 (en) | 1977-08-31 |
| AU5557673A (en) | 1974-11-14 |
| PH11703A (en) | 1978-05-24 |
| CH613923A5 (en) | 1979-10-31 |
| IE37623L (en) | 1974-01-24 |
| SE404101B (en) | 1978-09-18 |
| GB1424879A (en) | 1976-02-11 |
| NO135157C (en) | 1977-02-16 |
| PH10955A (en) | 1977-10-13 |
| ES414234A2 (en) | 1977-10-16 |
| IT1045344B (en) | 1980-05-10 |
| JPS4959103A (en) | 1974-06-08 |
| BR7303385D0 (en) | 1974-02-12 |
| ZA733086B (en) | 1975-01-29 |
| DE2323921B2 (en) | 1975-08-21 |
| JPS547007B2 (en) | 1979-04-03 |
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