Nanotek Instruments, Inc.

Lin Yi-jun

Bor Z Jang

Aruna Zhamu

Wei Xiong

Mingchao Wang

A unitary graphene-based integrated heat sink comprising a heat collection member (base) and at least one heat dissipation member (e.g. fins) integral to the baser, wherein the base is configured to be in thermal contact with a heat source, collects heat therefrom, and dissipates heat through the fins. The unitary graphene material is obtained from heat-treating a graphene oxide gel at a temperature higher than 100&#xb0; C., 500&#xb0; C., 1,250&#xb0; C., or 2,000&#xb0; C., and contains chemically bonded graphene molecules having inter-graphene distance of 0.3354-0.4 nm (preferably &#x3c;0.337 nm). The unitary graphene material is a graphene single crystal, a poly-crystal with incomplete grain boundaries, or a poly-crystal having large grain sizes (e.g. &#x3e;mm or cm), exhibiting a degree of graphitization preferably from 1% to 100% and a Mosaic spread value less than 0.7 (preferably no greater than 0.4). The finned heat sink may also be made from a filler-reinforced graphene matrix composite.

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Taoyuan, Taiwan

Lin Yi-jun