Method of fabricating vertical structure LEDs

Details Method of fabricating vertical structure LEDs Method of fabricating vertical structure LEDs

2011-04-19

2011-04-19

Mandala, Victor (Department: 2826)

Active solid-state devices (e.g., transistors, solid-state diode

Incoherent light emitter structure

With housing or contact structure

C257S079000, C257S103000, C257SE33026

Reexamination Certificate

active

07928465

ABSTRACT:
A method of fabricating semiconductor devices, such as GaN LEDs, on insulating substrates, such as sapphire. Semiconductor layers are produced on the insulating substrate using normal semiconductor processing techniques. Trenches that define the boundaries of the individual devices are then formed through the semiconductor layers and into the insulating substrate, beneficially by using inductive coupled plasma reactive ion etching. The trenches are then filled with an easily removed layer. A metal support structure is then formed on the semiconductor layers (such as by plating or by deposition) and the insulating substrate is removed. Electrical contacts, a passivation layer, and metallic pads are then added to the individual devices, and the individual devices are then diced out.

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