Extended surface cooling for chip stack applications

Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices

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174 163, 757722, 361710, H05K 720

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active

057197458

ABSTRACT:
A heat sink is provided for use with stacks of integrated circuit chips. The heat sink comprises a thermally conductive body having a recess in which the chip stack is disposed. The heat sink also includes fins which extend away from the recess. In one embodiment, fins are provided inside the recess for improved cooling of higher power chips such as a microprocessor which is surrounded by less thermally demanding memory chips.

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