Semiconductor for use in harsh environments

Active solid-state devices (e.g. – transistors – solid-state diode – Thin active physical layer which is – Heterojunction

Reexamination Certificate

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C257S094000, C257S098000

Reexamination Certificate

active

07902545

ABSTRACT:
A gallium-nitride semiconductor apparatus may include an active region having one or more nitride-based barrier layers that are modulation-doped using a nitride-based doped layer. An active region may have at least two nitride-based barrier layers, and a nitride-based blocking layer may be disposed between the at least two barrier layers.

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