US4929295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing ceramic laminate
Assignee: Murata Manufacturing Co Ltd
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Filing: 1989-01-06
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Granted: 1990-05-29
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Expires: 2009-01-06
Abstract
Abstract Disclosed herein is a method of manufacturing a ceramic laminate which is adapted to manufacture a laminated ceramic capacitor, for example. This method comprises the steps of preparing a plurality of ceramic green sheets containing ceramic powder and a first binder, forming metal paste films containing metal powder and a second binder for providing internal electrodes on first major surfaces of the ceramic green sheets and stacking the plurality of ceramic green sheets with each other. In such a method, a junction member containing a solvent which can commonly dissolve the first and second binders is prepared in order to join the plurality of ceramic green sheets with no application of pressure, to be applied between adjacent pairs of the plurality of ceramic green sheets, which are stacked with each other. The junction member is adapted to join the adjacent pairs of ceramic green sheets with each other through chemical function.
Inventors
- 👤 Yoshiaki Kohno
- 👤 Norio Sakai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:50
CPC Classifications
B; B32; B32B; B32B18/00; C; C04; C04B; C04B41/00; C04B41/45; C04B41/50; C04B41/51; C04B41/5194; H; H01; H01G; H01G4/00; H01G4/30; H01G4/308; H05; H05K; H05K3/00; H05K3/46; H05K3/4611; H05K3/4626; H05K3/4629; B32B2315/00; B32B2315/02; B32B2457/00; B32B2457/16; H05K1/00; H05K1/02; H05K1/03; H05K1/0306; H05K1/09; H05K1/092
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
110 words
A method of manufacturing a ceramic laminate, said method comprising the steps of: preparing first and second ceramic green sheets containing a first ceramic powder and a first binder; forming a metal paste film containing a metal powder and a second binder on one major surface of said second ceramic green sheets; preparing a junction member containing a solvent capable of dissolving both said first binder and said second binder; and stacking said first and second ceramic green sheets and said junction member together in such a manner that said metal paste film and said junction member are located between opposing surfaces of said first and second ceramic green sheets.
Claim 2
Independent Claim
110 words
A method of manufacturing a ceramic laminate, said method comprising the steps of: preparing first and second ceramic green sheets containing a first ceramic powder and a first binder; forming a metal paste film containing a metal powder and a second binder on one major surface of said second ceramic green sheets; preparing a junction member containing a solvent capable of dissolving both said first binder and said second binder; and stacking said first and second ceramic green sheets and said junction member together in such a manner that said metal paste film and said junction member are located between opposing surfaces of said first and second ceramic green sheets.
Claim 3
Dependent Claim
27 words
A method in accordance with claim 1, wherein said stacking step comprises the step of placing said second ceramic green sheet upon said first ceramic green sheet.
Claim 4
Dependent Claim
28 words
A method in accordance with claim 2, wherein said junction member is applied on said opposing surface of said first ceramic green sheet prior to said stacking step.
Claim 5
Dependent Claim
28 words
A method in accordance with claim 2, wherein said junction member is applied on said opposing surface of said second ceramic green sheet prior to said stacking step.
Claim 6
Dependent Claim
70 words
A method in accordance with claim 2, wherein said junction member is a first junction member, said method further includes the step of preparing a second junction member containing said solvent and said first junction member is applied on said opposing surface of said first ceramic green sheet and said second junction member is applied on said opposing surface of said second ceramic green sheet prior to said stacking step.
Claim 7
Dependent Claim
66 words
A method in accordance with claim 2, wherein said second ceramic green sheet is held by carrier means and placed on said first ceramic green sheet while being held by said carrier means, and wherein said method further comprising the step of separating said carrier means from said second ceramic green sheet after said second ceramic green sheet is placed upon said first ceramic green sheet.
Claim 8
Dependent Claim
27 words
A method in accordance with claim 1, wherein said junction member comprises ceramic slurry containing second ceramic powder and a third binder in addition to said solvent.
Claim 9
Dependent Claim
45 words
A method in accordance with claim 7, wherein said first ceramic powder and said second ceramic powder are made up of the same components as each other, and said first binder and said third binder are made up of the same components as each other.
Claim 10
Dependent Claim
44 words
A method in accordance with claim 7, wherein said first ceramic powder and said second ceramic powder are made up of the same components as each other, and said first binder and said third binder are made up of different components than each other.
Claim 11
Dependent Claim
44 words
A method in accordance with claim 7, wherein said first ceramic powder and said second ceramic powder are made up of different components than each other, and said first binder and said third binder are made up of the same components as each other.
Claim 12
Dependent Claim
43 words
A method in accordance with claim 7, wherein said first ceramic powder and said second ceramic powder are made up of different components than each other, and said first binder and said third binder are made up of different components than each other.
Claim 13
Dependent Claim
23 words
A method in accordance with claim 1, wherein said opposing surfaces are opposing major surfaces of said first and second ceramic green sheets.
Claim 14
Dependent Claim
32 words
A method in accordance with claim 1, wherein said junction member is applied to at least one of said opposing surfaces in an area where said metal paste film is not located.
Claim 15
Independent Claim
129 words
A method of manufacturing a ceramic laminate for a laminated ceramic capacitor, said method comprising the steps of: preparing first and second ceramic green sheets containing ceramic powder and a first binder; forming a metal paste film containing metal powder and a second binder for providing an internal electrode on one major surface of each said ceramic green sheet; preparing a junction member containing a solvent capable of dissolving both said first binder and said second binder; and stacking said first and second ceramic green sheets and said junction member with each other in such a manner that said junction member is located between opposed surfaces of said first and second ceramic green sheets and at least one of said metal paste films is located between said opposing surfaces.
Claim 16
Independent Claim
129 words
A method of manufacturing a ceramic laminate for a laminated ceramic capacitor, said method comprising the steps of: preparing first and second ceramic green sheets containing ceramic powder and a first binder; forming a metal paste film containing metal powder and a second binder for providing an internal electrode on one major surface of each said ceramic green sheet; preparing a junction member containing a solvent capable of dissolving both said first binder and said second binder; and stacking said first and second ceramic green sheets and said junction member with each other in such a manner that said junction member is located between opposed surfaces of said first and second ceramic green sheets and at least one of said metal paste films is located between said opposing surfaces.
Claim 17
Independent Claim
126 words
A method of manufacturing a ceramic laminate, said method comprising the steps of: preparing a first ceramic green sheet containing first ceramic powder and a first binder; preparing a second ceramic green sheet containing a second ceramic powder and a second binder; forming a metal paste film containing metal powder and a third binder on one major surface of at least one of said first and second ceramic green sheets; preparing a junction member containing a solvent capable of dissolving said first, second and third binders; and stacking said first and second ceramic green sheets and said junction member together in such a manner that said metal paste film and said junction member are located between opposing surfaces of said first and second ceramic green sheets.
Claim 18
Independent Claim
126 words
A method of manufacturing a ceramic laminate, said method comprising the steps of: preparing a first ceramic green sheet containing first ceramic powder and a first binder; preparing a second ceramic green sheet containing a second ceramic powder and a second binder; forming a metal paste film containing metal powder and a third binder on one major surface of at least one of said first and second ceramic green sheets; preparing a junction member containing a solvent capable of dissolving said first, second and third binders; and stacking said first and second ceramic green sheets and said junction member together in such a manner that said metal paste film and said junction member are located between opposing surfaces of said first and second ceramic green sheets.
Claim 19
Dependent Claim
31 words
A method in accordance with claim 15, wherein said metal paste film and said junction member are sandwiched between said opposing major surfaces of said first and second ceramic green sheets.
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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) | 1993-05-28 | 1993-11-27 | 1994-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-28 | 1997-11-27 | 1998-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-28 | 2001-11-27 | 2002-05-29 | $7700.00 | Window Closed / Lapsed |