Clamping heat sinks to circuit boards over processors

Details Clamping heat sinks to circuit boards over processors Clamping heat sinks to circuit boards over processors

1999-11-29

2001-04-24

Tolin, Gerald (Department: 2835)

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electronic systems and devices

C024S458000, C257S719000, C257S727000, C267S160000

Reexamination Certificate

active

06222734

ABSTRACT:

BACKGROUND
This invention relates generally to techniques for securing heat sinks to processors.
Conventionally, a processor is mounted in a socket on a motherboard such as a printed circuit board including a plurality of integrated circuits secured thereto. The integrated circuits may be electrically coupled by conductive lines printed on the circuit board. Heat dissipation affects the operation of the processor and thus it is desirable to have a highly effective and relatively compact heat sink for the processor.
Commonly clips are provided on the socket for the processor. Straps that connect to those clips are used to clamp a heat sink over the processor contained in the socket. This technique provides a firm spring attachment between the heat sink and the processor and is effective in dissipating heat from the processor.
However many available sockets do not include the clips for spring strapping the heat sink onto the socket. While it would be desired to use a spring clip strapping technique, there is no way to attach the strap so as to secure the heat sink over the processor.
Thus there is a need for a way to spring strap heat sinks onto processors secured in sockets without strap attaching clips.
SUMMARY
In accordance with one aspect, a method includes securing at least two clips to a circuit board. A heat sink is clamped over a processor on the circuit board using the clips.
Other aspects are set forth in the accompanying detailed description and claims.


REFERENCES:
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“Spring-Clip—Sink”, Almquist, IBM tech discl bull., vol. 23 No. 12 May 1981, pp. 5303.*
Aavid Thermal Technologies, Inc., “Passive Heat Sinks for Intel's Pentium Pro Processor”, Oct. 1995 (Preliminary Release, Revision A), 3 Pages.

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