高性能垂直トランジスタ用のシリコン上のIII-Vナノワイヤチャネル
Katsuhiro Tomioka1, Masatoshi Yoshimura, Takashi Fukui
1Graduate School of Information Science and Technology, Hokkaido University, Sapporo 060-8628, Japan. tomioka@rciqe.hokudai.ac.jp
Nature
|August 3, 2012
まとめ
研究者らは,シリコン上のインジウムガリウムアルセナイド (InGaAs) ナノワイヤを使用して,新しい周辺ゲートトランジスタを開発しました. これらの高度なフィールド効果トランジスタは,次世代の電子機器とワイヤレスネットワークの電流と伝導性を強化します.
科学分野:
- 材料科学 材料科学とは
- 電気工学 電気工学とは
- ナノテクノロジー ナノテクノロジー
背景:
- トランジスタのスケーリングは,漏れ電流やショートチャネル効果などの課題に直面しています.
- 三次元ゲート構造 (例えば,フィンフィールド効果トランジスタ) は,現在のソリューションです.
- InGaAsのようなIII-V材料は,高度なシリコンチャネルのために高い電子移動性を提供します.
研究 の 目的:
- シリコン上のInGaAsナノワイヤーで囲むゲートトランジスタを調査する.
- シリコン上のInGaAsナノ構造の統合課題を克服する.
- 将来の電子アプリケーションのために,垂直方向のトランジスタを開発する.
主な方法:
- シリコン上の垂直のInGaAsナノワイヤの位置制御された成長,バッファリングなし.
- InGaAsナノワイヤとコア-マルチシェルナノワイヤを使用した周辺ゲートトランジスタの製造.
- 性能を向上するために,InGaAs/InP/InAlAs/InGaAsのコア・マルチシェルナノワイヤを使用しました.
主要な成果:
- シリコン上のInGaAsナノワイヤの成功統合が実証されました.
- コア・マルチシェルナノワイヤチャネルでオンステート電流とトランスコンダクタンスが向上しました.
- 周囲のゲートトランジスタで優れたゲート制御性を維持しました.
結論:
- 垂直のInGaAsナノワイヤトランジスタは,次世代のフィールド効果トランジスタのための経路を提供します.
- これらのデバイスは,シリコンベースのワイヤレスネットワークの構成要素として機能します.
- 開発された技術は,現在のトランジスタのスケーリングと統合の限界に対応しています.
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