Patent US3912985A successfully refreshed from Google Patents.
US3912985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetic device enclosure
Assignee: Kyocera Avx Components Corp
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Filing: 1974-03-04
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Granted: 1975-10-14
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Expires: 1994-03-04
Abstract
Abstract A hermetic enclosure for an electrical component, particularly for a tantalum capacitor, and a method of forming it is disclosed. A silver container is provided having an open end at which an outwardly protruding flange is formed. A tantalum cover substantially coextensive with the flange is provided having a layer of gold or gold alloy adhered to at least the sealing surface thereof. The cover is disposed adjacent the container with the gold or gold alloy adjacent the flange. A hermetic seal is affected between the container flange and the cover.
Inventors
- 👤 Peter Sawchuk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:10
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/08; H01G9/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
109 words
An enclosure comprising a silver container with an uncoated interior surface and open at one end, said container having a unitary outwardly protruding flange at said open end, a metallic cover substantially coextensive with said unitary outwardly protruding flange, a layer of material selected from the group consisting of gold and gold alloy hermetically adhered to at least a surface of said metallic cover, said cover disposed so that said layer of material is adjacent said unitary outwardly protruding container flange, and a hermetic seal between said unitary outwardly protruding container flange and the layer of material hermetically adhered to said metallic cover along said unitary outwardly protruding flange.
Claim 2
Dependent Claim
109 words
An enclosure comprising a silver container with an uncoated interior surface and open at one end, said container having a unitary outwardly protruding flange at said open end, a metallic cover substantially coextensive with said unitary outwardly protruding flange, a layer of material selected from the group consisting of gold and gold alloy hermetically adhered to at least a surface of said metallic cover, said cover disposed so that said layer of material is adjacent said unitary outwardly protruding container flange, and a hermetic seal between said unitary outwardly protruding container flange and the layer of material hermetically adhered to said metallic cover along said unitary outwardly protruding flange.
Claim 3
Dependent Claim
38 words
The enclosure of claim 1 wherein said cover embodies an aperture therein further comprising a lead disposed within said aperture and a quantity of sealing glass fused to said lead and the aperture defining portion of said cover.
Claim 4
Dependent Claim
21 words
The enclosure of claim 2 further comprising an electrical component disposed within said container to which said lead is electrically attached.
Claim 5
Dependent Claim
20 words
The enclosure of claim 3 wherein said component is a porous tantalum slug attached to said lead for electrical continuity.
Claim 6
Dependent Claim
20 words
The enclosure of claim 4 further comprising a lead attached to said container at the end opposite said open end.
Claim 7
Dependent Claim
13 words
The enclosure of claim 4 wherein said metallic cover is formed of tantalum.
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) | 1978-10-13 | 1979-04-14 | 1979-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-13 | 1983-04-14 | 1983-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-13 | 1987-04-14 | 1987-10-14 | $7700.00 | Window Closed / Lapsed |