Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – With housing or contact structure
Reexamination Certificate
2011-01-04
2011-01-04
Vu, David (Department: 2818)
Active solid-state devices (e.g., transistors, solid-state diode
Incoherent light emitter structure
With housing or contact structure
C257S703000, C257SE33058, C257SE33066, C257SE33075
Reexamination Certificate
active
07863639
ABSTRACT:
A light-emitting diode (LED) structure with an improved heat transfer path with a lower thermal resistance than conventional LED lamps is provided. For some embodiments, a surface-mountable light-emitting diode structure is provided having an active layer deposited on a metal substrate directly bonded to a metal plate that is substantially exposed for low thermal resistance by positioning it on the bottom of the light-emitting diode structure. This metal plate can then be soldered to a printed circuit board (PCB) that includes a heat sink. For some embodiments of the invention, the metal plate is thermally and electrically conductively connected through several heat conduction layers to a large heat sink that may be included in the structure.
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Patterson & Sheridan LLP
SemiLEDs Optoelectronics Co. Ltd.
Taylor Earl N
Vu David
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