US5093989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making heat-resistant hermetic packages for electronic components
Assignee: Morgan Advanced Materials PLC
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Filing: 1990-11-13
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Granted: 1992-03-10
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Expires: 2010-11-13
Abstract
Abstract A heat-resistant package for electrical components comprises a housing composed of a plurality of independent side walls made of heat resistant ceramic material. Sealed-in leads are provided in one or more of the side walls. After the leads are installed, the ends of the side walls are brazed together to form a closed ring and that ring is brazed to the housing bottom wall. Also, a continuous metal ring may be brazed to the tops of the side walls. The brazings provide hermetic seals between the housing walls and they, along with the seal ring, provide compliance between the walls making the housing resistant to thermal shocks.
Inventors
- 👤 Kenneth A. Beltz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:27
CPC Classifications
H; H10; H10W; H10W95/00; H10W72/00; H10W76/00; H10W76/10; H10W76/12; H10W76/15; H10W76/157; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49204; Y10T29/49208; Y10T29/4921; Y10T29/49211
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
93 words
A method of making a heat-resistant package for electrical components of the type including a housing with side walls and a bottom wall, said method comprising the steps of forming said housing side walls as independent ceramic parts; installing sealed-in leads in one or more of said side walls; testing the seals at said leads for defects; subsequently assembling said side walls on the bottom wall so that the side wall ends engage one another to form a closed ring, and brazing the side walls to each other and to the bottom wall.
Claim 2
Independent Claim
93 words
A method of making a heat-resistant package for electrical components of the type including a housing with side walls and a bottom wall, said method comprising the steps of forming said housing side walls as independent ceramic parts; installing sealed-in leads in one or more of said side walls; testing the seals at said leads for defects; subsequently assembling said side walls on the bottom wall so that the side wall ends engage one another to form a closed ring, and brazing the side walls to each other and to the bottom wall.
Claim 3
Dependent Claim
35 words
The method defined in claim 1 and including the additional step of superimposing a metal ring on the top of said side walls, and brazing said metal ring to the tops of said side walls.
Claim 4
Dependent Claim
23 words
The method defined in claim 2 and including the additional step of prior to assembly, plating the surface areas of said wall ends.
Claim 5
Dependent Claim
36 words
The method defined in claim 3 wherein the leads are installed by forming through-holes in said one or more side walls; plating the walls of said through-holes, and brazing the leads to the plated through-hole walls.
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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) | 1995-03-10 | 1995-09-09 | 1996-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-10 | 1999-09-09 | 2000-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-10 | 2003-09-09 | 2004-03-10 | $7700.00 | Window Closed / Lapsed |