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Effect of temperature on Ga{sub 2}O{sub 3}(Gd{sub 2}O{sub 3})/GaN metal{endash}oxide{endash}semiconductor field-effect transistors

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.122927· OSTI ID:677217
 [1]; ; ;  [2];  [3];  [4]; ;  [5]
  1. Department of Chemical Engineering, University of Florida, Gainesville, Florida 32606 (United States)
  2. Bell Laboratories, Lucent Technologies, Murray Hill, New Jersey 07974 (United States)
  3. EMCORE Inc., Somerset, New Jersey 07061 (United States)
  4. Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)
  5. Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32606 (United States)

Ga{sub 2}O{sub 3}(Gd{sub 2}O{sub 3}) was deposited on GaN for use as a gate dielectric in order to fabricate a depletion metal{endash}oxide{endash}semiconductor field-effect transistor (MOSFET). Analysis of the effect of temperature on the device shows that gate leakage is significantly reduced at elevated temperature relative to a conventional metal{endash}semiconductor field-effect transistor fabricated on the same GaN layer. MOSFET device operation in fact improved upon heating to 400 {degree}C. Modeling of the effect of temperature on contact resistance suggests that the improvement is due to a reduction in the parasitic resistances present in the device. {copyright} {ital 1998 American Institute of Physics.}

OSTI ID:
677217
Journal Information:
Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 26 Vol. 73; ISSN APPLAB; ISSN 0003-6951
Country of Publication:
United States
Language:
English

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