US3848078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hybrid electronic circuit employing meshed support
Assignee: Collins Radio Co
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Filing: 1973-09-12
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Granted: 1974-11-12
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Expires: 1993-09-12
Abstract
Abstract A hybrid circuit operating in a temperature variable environment employs a meshed support for solderably attaching the ceramic substrate to a heat conducting metal housing or carrier whereby thermally-induced stresses do not destroy the solder bond.
Inventors
- 👤 J Guillot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:54
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/30; H05K3/32; H05K3/34; H05K3/3405; H10; H10N; H10N97/00; H05K1/00; H05K1/02; H05K1/03; H05K1/0306; H05K2201/00; H05K2201/09; H05K2201/09209; H05K2201/09654; H05K2201/09681; H05K3/0058; H05K3/0061
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
71 words
A hybrid electronic circuit comprising a ceramic substrate having a circuit pattern defined thereon and solder pads defined near peripheral portions thereof; a metal carrier including a cavity receiving said substrate and having solder pads defined on interior surfaces thereof; and meshed support means soldered to said solder pads of said substrate and to said solder pads of said carrier thereby physically attaching said substrate to said carrier within said cavity.
Claim 2
Dependent Claim
71 words
A hybrid electronic circuit comprising a ceramic substrate having a circuit pattern defined thereon and solder pads defined near peripheral portions thereof; a metal carrier including a cavity receiving said substrate and having solder pads defined on interior surfaces thereof; and meshed support means soldered to said solder pads of said substrate and to said solder pads of said carrier thereby physically attaching said substrate to said carrier within said cavity.
Claim 3
Dependent Claim
19 words
A hybrid electronic circuit as defined by claim 1 wherein said meshed support means comprises a cylindrical multifilament braid.
Claim 4
Dependent Claim
19 words
A hybrid electronic circuit as defined by claim 1 wherein said meshed support means comprises a meshed multifilament screen.
Claim 5
Dependent Claim
24 words
A hybrid electronic circuit as defined by claim 1 wherein said meshed support means comprises a unitary member having a mesh pattern defined therein.
References Cited (Backward Citations)
US2972657A
Cited
US3784726A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |