US4577923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave integrated circuit and mounting device therefor
Assignee: NEC Corp
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Filing: 1984-03-26
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Granted: 1986-03-25
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Expires: 2004-03-26
Abstract
Abstract A microwave integrated circuit includes a mounting device surrounding a lead adapted to be electrically connected to a circuit board. The mounting device comprises electrically conductive material spaced from the lead to form a coaxial structure suitable for microwave operation. Apertures, grooves, or the like extend from the space defined between the mounting device and the lead to the outside of the mounting device to provide an exit for a flux gas evolved during soldering of the microwave integrated circuit to a circuit board. The mounting device may exist separately from the microwave integrated circuit.
Inventors
- 👤 Hiroshi Ikemizu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:54
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/30; H05K3/32; H05K3/34; H05K3/3447; H05K1/00; H05K1/02; H05K1/0213; H05K1/0237; H05K1/0243; H10; H10W; H10W44/00; H10W44/20; H05K2201/00; H05K2201/09; H05K2201/09209; H05K2201/09654; H05K2201/09809; H05K2201/10; H05K2201/10227; H05K2201/10371; H05K2201/10431; H05K2201/10606; H05K2201/10613; H05K2201/10621; H05K2201/10659; H05K2201/10689; H05K2201/10742; H05K2201/1075; H05K2201/10818; H05K2201/10871; H05K2201/10954; H05K2201/10969; H05K2203/00; H05K2203/11; H05K2203/1147; H05K2203/1178
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
70 words
A microwave integrated circuit having at least one lead extending therefrom, said microwave integrated circuit comprising: a protrusive portion being coaxial with and arranged around said lead that an axially extending space is defined between said lead and an inside surface of said protrusive portion, said protrusive portion being formed of an electrically conductive material; and degasifying means extending from said space to an area external of said protrusive portion.
Claim 2
Dependent Claim
70 words
A microwave integrated circuit having at least one lead extending therefrom, said microwave integrated circuit comprising: a protrusive portion being coaxial with and arranged around said lead that an axially extending space is defined between said lead and an inside surface of said protrusive portion, said protrusive portion being formed of an electrically conductive material; and degasifying means extending from said space to an area external of said protrusive portion.
Claim 3
Dependent Claim
26 words
A microwave integrated circuit as claimed in claim 1, wherein said degasifying means comprises apertures extending between said space and the outside of said protrusive portion.
Claim 4
Dependent Claim
23 words
A microwave integrated circuit as claimed in claim 1, wherein said degasifying means comprises grooves situated at the tip of said protrusive portion.
Claim 5
Dependent Claim
81 words
A microwave integrated circuit mounting device adapted to be situated between a microwave integrated circuit having at least one lead and a circuit board, said mounting device comprising: a body section of electrically conductive material, said body section including an aperture with a generally cylindrical surface and being dimensioned so that an elongated lead may extend therethrough while being coaxially spaced from said generally cylindrical surface; and degasifying means extending from said aperture to an area external to said mounting device.
Claim 6
Dependent Claim
81 words
A microwave integrated circuit mounting device adapted to be situated between a microwave integrated circuit having at least one lead and a circuit board, said mounting device comprising: a body section of electrically conductive material, said body section including an aperture with a generally cylindrical surface and being dimensioned so that an elongated lead may extend therethrough while being coaxially spaced from said generally cylindrical surface; and degasifying means extending from said aperture to an area external to said mounting device.
Claim 7
Dependent Claim
22 words
A microwave integrated circuit mounting device as claimed in claim 4, further comprising insulating material in the circumferential periphery of said aperture.
Claim 8
Dependent Claim
33 words
A microwave integrated circuit mounting device as claimed in claim 4, wherein said mounting device is configured so as to be able to be mounted on a major surface of the circuit board.
Claim 9
Dependent Claim
24 words
A microwave integrated circuit mounting device as claimed in claim 4, wherein said degasifying means is situated at the tip of said mounting device.
References Cited (Backward Citations)
US3189536A
Cited
US3331912A
Cited
US3621112A
Cited
US3889232A
Cited
US4070077A
Cited
US4181385A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-24 | 1989-09-23 | 1990-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-24 | 1993-09-23 | 1994-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-24 | 1997-09-23 | 1998-03-25 | $7700.00 | Window Closed / Lapsed |