Graftech International Holdings Inc.

Brian J Laser

Martin David Smalc

Bradley E Reis

Michael Frastaci

Matthew George Getz

Prathib Skandakumaran

Gary Stephen Kostyak

A graphite heat spreader is provided for use with a flash LED light source for a camera of a handheld device such as a cell phone. Dramatically reduced operating temperatures are provided at substantially increased power levels thus providing both improved lighting and improved operating life of the electronic components.

Cycling LED heat spreader

Constructions for and methods of manufacturing graphite heat spreaders having thermal vias placed therethrough are provided. Thermal vias having one or two flanges are disclosed, as are flush thermal vias. Graphite heat spreaders having surface layers covering the graphite material are provided. Graphite heat spreaders having a layer of cladding for increased structural integrity are provided. Also disclosed are methods of co-forging a graphite heat spreader element with a metal thermal via in place therein.

Heat spreaders with vias

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Munroe Falls, OH, United States of America

Brian J Laser