書誌事項
- タイトル別名
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- Improvement in Device Performances of InP-Based HEMTs by Thinning a Barrier Layer
- ショウヘキソウ ハクソウカ ニ ヨル InPケイ HEMT ノ トクセイ カイゼン
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The dependences of source resistance, Rs, transconductance, gm, gate capacitance, Cgs, Cgd, and cutoff frequency, fT, of InP-based HEMTs on an InAlAs barrier layer thickness, d, were investigated. We divided Rs into 4 elements and analyzed the effect of thinning a barrier layer. The resistance originated from the large band discontinuity between InAlAs and InGaAs decreased by thinning a barrier layer, while the resistance in the gate-recessed region increased. As a result, InP-based HEMT with d=10 nm showed lowest Rs. On the other hand, gm increased monotonically with d, due to the reduction of the gate to channel distance, and gmint reached to 2.6 S/mm at d=5 nm. We also estimated fT by using small-signal measurements. fT increased with the reduction of d, which results in the improvement in noise characteristics.
収録刊行物
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- 電気学会論文誌C(電子・情報・システム部門誌)
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電気学会論文誌C(電子・情報・システム部門誌) 128 (6), 861-864, 2008
一般社団法人 電気学会
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詳細情報 詳細情報について
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- CRID
- 1390001204606013184
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- NII論文ID
- 10021132586
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- NII書誌ID
- AN10065950
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- ISSN
- 13488155
- 03854221
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- NDL書誌ID
- 9531814
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- 使用不可