High voltage GaN-based transistor structure

Semiconductor device manufacturing: process – Making field effect device having pair of active regions... – Having schottky gate

Reexamination Certificate

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C438S167000, C438S194000, C438S047000, C257S194000

Reexamination Certificate

active

07968391

ABSTRACT:
A high voltage and high power gallium nitride (GaN) transistor structure is disclosed. A plurality of structural epitaxial layers including a GaN buffer layer is deposited on a substrate. A GaN termination layer is deposited on the plurality of structural epitaxial layers. The GaN termination layer is adapted to protect the plurality of structural epitaxial layers from surface reactions. The GaN termination layer is sufficiently thin to allow electrons to tunnel through the GaN termination layer. Electrical contacts are deposited on the GaN termination layer, thereby forming a high electron mobility transistor.

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