Effect of heating on electrical transport in AlGaN/GaN Schottky barrier diodes on Si substrate

Hyeonseok Woo, Yongcheol Jo, Jongmin Kim, Cheonghyun Roh, Junho Lee, H. Kim, H. Im, Cheol Koo Hahn, Jung ho Park

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Thermal properties of the AlGaN/GaN Schottky barrier diodes were investigated, using a pulsed-IV measurement technique. The thermally degraded mobility in the DC-bias configuration was restored, when the pulse-bias voltages were applied. It was observed that heat generation was minimized, using a pulse width of 500 ns and pulse period of 10 ms. For the SBDs consisting of 5 μm of anode-cathode distance, on-resistance measured by the pulse-IV and DC-IV were 1.6 and 6.2 Ω-mm, respectively. We also demonstrated the device-width dependence of the thermal properties of the SBDs. We found that the performance of the power devices can be greatly influenced by the heat generation.

Original languageEnglish
JournalCurrent Applied Physics
Volume14
Issue numberSUPPL. 1
DOIs
Publication statusPublished - 2014 Mar 14

Fingerprint

Schottky barrier diodes
Heat generation
Schottky diodes
Thermodynamic properties
heat generation
Heating
heating
Substrates
thermodynamic properties
Bias voltage
pulses
direct current
Anodes
Cathodes
pulse duration
anodes
cathodes
electric potential
configurations
aluminum gallium nitride

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Effect of heating on electrical transport in AlGaN/GaN Schottky barrier diodes on Si substrate. / Woo, Hyeonseok; Jo, Yongcheol; Kim, Jongmin; Roh, Cheonghyun; Lee, Junho; Kim, H.; Im, H.; Hahn, Cheol Koo; Park, Jung ho.

In: Current Applied Physics, Vol. 14, No. SUPPL. 1, 14.03.2014.

Research output: Contribution to journalArticle

Woo, Hyeonseok ; Jo, Yongcheol ; Kim, Jongmin ; Roh, Cheonghyun ; Lee, Junho ; Kim, H. ; Im, H. ; Hahn, Cheol Koo ; Park, Jung ho. / Effect of heating on electrical transport in AlGaN/GaN Schottky barrier diodes on Si substrate. In: Current Applied Physics. 2014 ; Vol. 14, No. SUPPL. 1.
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AU - Hahn, Cheol Koo

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