Heatsink
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United States of America Patent
Stats
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Apr 15, 2008
Grant Date -
Mar 23, 2006
app pub date -
Sep 20, 2005
filing date -
Sep 20, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Provided is a heatsink comprising: a plurality of sheet-shaped heat-dissipating plates stacked on one another, each heat dissipating plate including a heat-absorbing region that has a lower end contacting a heat source to absorb heat from the heat source and a heat-dissipating region that extends from both sides of the heat-absorbing region to absorb heat from the heat-absorbing region and outwardly dissipate the heat, wherein the heat-absorbing regions are tightly joined to one another by applying an external pressure to form a central portion and the heat-dissipating regions are radially spread out about the central portion, wherein each of the heat-dissipating regions includes a long heat-dissipating region and a short heat-dissipating region, which are asymmetric with respect to the central portion. Accordingly, the heatsink can efficiently dissipate heat generated from the heat source mounted on an edge of a narrow circuit board by efficiently utilizing a space over the circuit board.

First Claim
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
ZALMAN TECH CO LTD | 448 GASAN-DONG GUMCHUN-GU 1007 DAERYUNG TECHNO TOWN III SEOUL |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Lee, Sang Cheol | Kyungki-do, KR | 64 | 832 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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