US4471407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination heat sink for a semiconductor
Assignee: Kohler Co
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Filing: 1982-09-27
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Granted: 1984-09-11
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Expires: 2002-09-27
Abstract
Abstract An improved semiconductor heat sink for securing a semiconductor thereto for dissipating the heat generated by the semiconductor as well as for supporting those circuit board components which extend upwardly from the circuit board adjacent to the heat sink comprises a vertically extending leg fastened at its lower end to a printed circuit board. The leg has at least one mounting surface thereon for receiving a semiconductor in face to face relationship therewith. Extending outwardly from the leg in opposite directions are a pair of fins, each fin being perpendicular to the mounting surface on the leg. Running along the end of each fin is a downwardly extending projection for engaging a complementary groove in a separate one of a pair of circuit board components, such as connector blocks which each extend upwardly from the circuit board adjacent to a separate one of the fins so that the edges serve to impart further rigidity to the connector blocks.
Inventors
- 👤 Richard L. Sleder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:00
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/20; H05K7/2039; H05K7/20436; H05K5/00; H05K5/06; H05K5/064; H10; H10W; H10W40/00; H10W40/20; H10W40/22; H10W76/00; H10W76/40; H10W76/42; H10W76/47; H10W40/60; H10W40/611
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
130 words
An improved heat-conductive structure and a printed circuit board having components connected thereto, said heat-conductive structure having a mounting surface to which a semiconductor is mounted to dissipate the heat generated by the semiconductor and in addition, said heat-conductive structure supporting components on the circuit board which extend upwardly from the circuit board, said heat conductive structure comprising: a leg attached at one of its ends to the printed circuit board and providing said mounting surface; a fin integrally formed to and extending outwardly from the leg a substantial distance above the printed circuit board; and component-engaging means carried at the outer end of the fin, said component-engaging means engaging an upwardly extending circuit board component to impart rigidity to the upwardly extending circuit board component during the assembly process.
Claim 2
Dependent Claim
130 words
An improved heat-conductive structure and a printed circuit board having components connected thereto, said heat-conductive structure having a mounting surface to which a semiconductor is mounted to dissipate the heat generated by the semiconductor and in addition, said heat-conductive structure supporting components on the circuit board which extend upwardly from the circuit board, said heat conductive structure comprising: a leg attached at one of its ends to the printed circuit board and providing said mounting surface; a fin integrally formed to and extending outwardly from the leg a substantial distance above the printed circuit board; and component-engaging means carried at the outer end of the fin, said component-engaging means engaging an upwardly extending circuit board component to impart rigidity to the upwardly extending circuit board component during the assembly process.
Claim 3
Dependent Claim
39 words
The invention according to claim 1 wherein said fin has an upwardly sloping portion integrated to said leg and a planar section extending out from the free end of said sloping fin section substantially parallel to the circuit board.
Claim 4
Dependent Claim
16 words
The invention according to claim 1 wherein said fin has a plurality of upwardly extending ribs.
Claim 5
Dependent Claim
40 words
The invention according to claim 3 wherein one of said ribs on said fin extend upwardly along the end of said fin so as to be an abutment with the upwardly extending circuit board component located adjacent to said edge.
Claim 6
Dependent Claim
17 words
The invention according to claim 1 wherein said leg has a plurality of ribs extending outwardly therefrom.
Claim 7
Dependent Claim
34 words
The invention according to claim 1 wherein said component engaging means comprises a ridge which extends downwardly along the end of each of said edges for engaging the adjacent upwardly extending circuit board component.
Claim 8
Dependent Claim
164 words
An improved heat conductive structure and a printed circuit board having a plurality of components thereon, the components including at least one semiconductor and a pair of parallel, spaced apart connecting blocks each extending upwardly from the circuit board on either side of said heat-conductive structure, said heat-conductive structure comprising: a leg attached at its lower end to the printed circuit board; a pair of fins each integrally formed to and extending upwardly and outwardly in opposite directions from said leg, the end of each fin being positioned a substantial distance above the printed circuit board; at least one mounting surface disposed on a lateral edge of said leg in a plane which is substantially perpendicular to the plane of each of said fins, said mounting surface receiving a semiconductor in face-to-face relationship therewith; and a ridge extending downwardly from the end of each fin in engagement with a separate one of the upwardly extending connector blocks to impart rigidity to the connector block.
Claim 9
Dependent Claim
164 words
An improved heat conductive structure and a printed circuit board having a plurality of components thereon, the components including at least one semiconductor and a pair of parallel, spaced apart connecting blocks each extending upwardly from the circuit board on either side of said heat-conductive structure, said heat-conductive structure comprising: a leg attached at its lower end to the printed circuit board; a pair of fins each integrally formed to and extending upwardly and outwardly in opposite directions from said leg, the end of each fin being positioned a substantial distance above the printed circuit board; at least one mounting surface disposed on a lateral edge of said leg in a plane which is substantially perpendicular to the plane of each of said fins, said mounting surface receiving a semiconductor in face-to-face relationship therewith; and a ridge extending downwardly from the end of each fin in engagement with a separate one of the upwardly extending connector blocks to impart rigidity to the connector block.
Claim 10
Dependent Claim
45 words
The invention according to claim 7 wherein each of said fins includes a pair of upwardly extending ribs, one of said ribs extending upwardly from the end of said fin in alignment with said ridge so as to be in abutment with the connector block.
Claim 11
Dependent Claim
35 words
The invention according to claim 7 further including a plurality of ribs each extending upwardly from said leg so as to be parallel to the upwardly extending portion of a separate one of said edges.
References Cited (Backward Citations)
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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) | 1987-09-11 | 1988-03-12 | 1988-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-11 | 1992-03-12 | 1992-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-11 | 1996-03-12 | 1996-09-11 | $7700.00 | Window Closed / Lapsed |