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Plasma-based edge terminations for gallium nitride power devices

Patent ·
OSTI ID:1925002
A p-n diode includes a first electrode, a n-GaN layer on the first electrode, a p-GaN layer on the n-GaN layer, and a second electrode on a first portion of the p-GaN layer. A region of the p-GaN layer surrounding the electrode is a passivated region. Treating a GaN power device having a p-GaN layer includes covering a portion of the p-GaN layer with a metal layer, exposing the p-GaN layer to a hydrogen plasma, and thermally annealing the p-GaN layer, thereby passivating a region of the p-GaN layer proximate the metal layer.
Research Organization:
Arizona State Univ., Scottsdale, AZ (United States)
Sponsoring Organization:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
DOE Contract Number:
AR0000868
Assignee:
Arizona Board of Regents on behalf of Arizona State University (Scottsdale, AZ)
Patent Number(s):
11,417,529
Application Number:
17/072,622
OSTI ID:
1925002
Country of Publication:
United States
Language:
English

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