Patent US4829399A successfully refreshed from Google Patents.
US4829399A
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Filled layer component made out of a monolithic ceramic body
Assignee: Siemens AG
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Filing: 1987-08-18
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Granted: 1989-05-09
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Expires: 2007-08-18
Abstract
Abstract The invention relates to a filler layer component for a monolithic ceramic body having a ceramic layer structure of dense and porous layers which is impregnated with a metallic material. According to the invention, one selects as impregnating material a metal or alloy which in its liquid state wets the ceramic. This may be in particular a lead-indium, a copper-indium, or a silver-indium alloy in which the indium content is greater than 0.5%.
Inventors
- 👤 Klaus Otto
- 👤 Thomas Moser
- 👤 Horst Kippenberg
- 👤 Erich Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:16
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/005; H01G4/008; H01G4/30; H01G4/302; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
75 words
A filler layer suitable for making a component by impregnating a monolithic ceramic body of dense and porous layers and having electrical contacts at the outer surfaces, which comprises: an impregnating metal or alloy material capable of wetting the ceramic in the liquid state, whereby the impregnating material is completely retained within the ceramic body after impregnation without the necessity of having a pre-coating on the outer surface of the ceramic body prior to impregnation.
Claim 2
Dependent Claim
75 words
A filler layer suitable for making a component by impregnating a monolithic ceramic body of dense and porous layers and having electrical contacts at the outer surfaces, which comprises: an impregnating metal or alloy material capable of wetting the ceramic in the liquid state, whereby the impregnating material is completely retained within the ceramic body after impregnation without the necessity of having a pre-coating on the outer surface of the ceramic body prior to impregnation.
Claim 3
Dependent Claim
28 words
A filler layer according to claim 1, wherein the impregnating metal or alloy material is a lead-indium alloy having between about 2.5% to about 20% by weight indium.
Claim 4
Dependent Claim
28 words
A filler layer according to claim 1, wherein the impregnating metal or alloy material is a copper-indium alloy having between about 2.5% to about 20% by weight indium.
Claim 5
Dependent Claim
26 words
A filler layer according to claim 1, wherein the impregnating metal or alloy material is a silver-indium alloy having at least about 2% by weight indium.
Claim 6
Dependent Claim
20 words
A filler layer according to claim 4, wherein the indium content is between about 2.5 and about 20% by weight.
Claim 7
Dependent Claim
26 words
A filler layer according to claim 2, 3 or 4, wherein the indium portion of the impregnating material is replaced at least in part by gallium.
Claim 8
Dependent Claim
39 words
A filler layer as in claim 6, wherein additional elements are added to the impregnating material for adjusting the melting point to a temperature of at least 180° C. and for adjusting the solidification properties of the impregnating materials.
Claim 9
Dependent Claim
23 words
A filler layer as in claim 5 wherein the indium portion of the impregnating material is replaced at least in part by gallium.
Claim 10
Dependent Claim
42 words
A filler layer according to claim 2, 3 or 4, wherein additional elements are added to the impregnating material for adjusting the melting point to a temperature of at least 180° C. and for adjusting the solidification properties of the impregnating material.
Claim 11
Dependent Claim
15 words
A filler layer according to claim 9, wherein the impregnating material contains additionally tin (Sn).
Claim 12
Dependent Claim
15 words
A filler layer according to claim 9, wherein the impregnating material contains additionally antimony (Sb).
Claim 13
Dependent Claim
15 words
A filler layer according to claim 9, wherein the impregnating material contains additionally bismuth (Bi).
Claim 14
Dependent Claim
82 words
A component comprising a monolithic ceramic layer body of dense and porous layers with electrical contacts at its outer surfaces and a filler layer of a metal or alloy material impregnated therein that is capable of wetting the ceramic when the component is in the liquid state, whereby the filler layer does not run out of the ceramic body after it is impregnated therein without the necessity of having a pre-coating on the outer surface of the ceramic body prior to impregnation.
Claim 15
Dependent Claim
82 words
A component comprising a monolithic ceramic layer body of dense and porous layers with electrical contacts at its outer surfaces and a filler layer of a metal or alloy material impregnated therein that is capable of wetting the ceramic when the component is in the liquid state, whereby the filler layer does not run out of the ceramic body after it is impregnated therein without the necessity of having a pre-coating on the outer surface of the ceramic body prior to impregnation.
Claim 16
Dependent Claim
35 words
A component according to claim 13 wherein the metal or alloy material is a lead alloy or lead metal mixture with another metal selected from the group consisting of indium, gallium, tin and mixtures thereof.
Claim 17
Dependent Claim
35 words
A component according to claim 13 wherein the metal or alloy material is a silver alloy or silver metal mixture with another metal selected from the group consisting of indium, gallium, tin and mixtures thereof.
Claim 18
Dependent Claim
35 words
A component according to claim 13 wherein the metal or alloy material is a copper alloy or copper metal mixture with another metal selected from the group consisting of indium, gallium, tin and mixtures thereof.
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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) | 1992-05-08 | 1992-11-07 | 1993-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-08 | 1996-11-07 | 1997-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-08 | 2000-11-07 | 2001-05-09 | $7700.00 | Window Closed / Lapsed |