Active solid-state devices (e.g. – transistors – solid-state diode – Housing or package – With provision for cooling the housing or its contents
Reexamination Certificate
2006-04-19
2010-12-21
Parekh, Nitin (Department: 2811)
Active solid-state devices (e.g., transistors, solid-state diode
Housing or package
With provision for cooling the housing or its contents
C257S707000, C257S713000, C257S098000, C257S432000, C257S433000, C257SE23113
Reexamination Certificate
active
07855449
ABSTRACT:
A cooling device for cooling a light-emitting semiconductor device, such as a LED device (20), comprises a ceramic plate (15) having coolant-conveying channels (12) incorporated therein. The ceramic plate (15) is adapted for forming an integral part of the optical system of the light-emitting semiconductor device (20) and to cool a light-emitting portion (26) of the light-emitting semiconductor device (20). A method of forming a cooling device comprises the steps of forming a charge of ceramic particles, embossing the charge with a stamp to form coolant-conveying channels in the charge, hardening the charge, and providing a cover on top of the channels to seal them.
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De Graff Jan
Kop Theo Arnold
Marra Johan
Nicole Celine Catherine Sarah
Van Sprang Hans
Koninklijke Philips Electronics , N.V.
Parekh Nitin
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