Backside-electrode effects on current collapse in field-plate AlGaN/GaN HEMTs

Kazushige Horio, Hiraku Onodera

研究成果: Article

3 引用 (Scopus)

抜粋

Two-dimensional transient analysis of field-plate AlGaN/GaN HEMTs with a backside electrode is performed by considering the use of a deep donor and a deep acceptor in a buffer layer. Effects of introducing the field plate and backside electrode on buffer-related current collapse are studied. It is shown that the introduction of field plate is effective in reducing current collapse when the acceptor density in the buffer layer is high. On the other hand, the introduction of backside electrode is shown to be effective in reducing current collapse when the acceptor density in the buffer layer is relatively low, because the fixed potential at the backside electrode reduces electron injection into the buffer layer and the resulting trapping effects.

元の言語English
ページ(範囲)1655-1657
ページ数3
ジャーナルPhysica Status Solidi (C) Current Topics in Solid State Physics
9
発行部数7
DOI
出版物ステータスPublished - 2012 7 1

ASJC Scopus subject areas

  • Condensed Matter Physics

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