Evaluation of RF and logic performance for 80 nm InAs/InGaAs composite channel HEMTs using gate sinking technology

Chien I. Kuo*, Heng-Tung Hsu, Chia Yuan Chang, Edward Yi Chang, Heng Shou Hsu

*此作品的通信作者

研究成果: Conference contribution同行評審

2 引文 斯高帕斯(Scopus)

摘要

80-nm-gate In0.7Ga0.3As/InAs/In0.7Ga 0.3As composite channel high-electron mobility transistors (HEMTs) fabricated using platinum (Pt) buried gate as the Schottky contact metal were evaluated for RF and logic application. After gate sinking at the 250°C for 3 minutes, the device exhibited a high gm value of 1590mS/mm at Vd = 0.5V and the current gain cutoff frequency fT was measured to be 494 GHz. The intrinsic gate delay time was calculated to be 0.78 psec at supply voltage of 0.6 V. This is the highest fT achieved for 80 nm gate length HEMT devices. These superior performances are attributed to the reduction of distance between gate and channel, and the reduction of parasitic gate capacitances during gate-sinking process.

原文English
主出版物標題IEEE Conference on Electron Devices and Solid-State Circuits 2007, EDSSC 2007
頁面255-258
頁數4
DOIs
出版狀態Published - 2007
事件IEEE Conference on Electron Devices and Solid-State Circuits 2007, EDSSC 2007 - Tainan, 台灣
持續時間: 20 12月 200722 12月 2007

出版系列

名字IEEE Conference on Electron Devices and Solid-State Circuits 2007, EDSSC 2007

Conference

ConferenceIEEE Conference on Electron Devices and Solid-State Circuits 2007, EDSSC 2007
國家/地區台灣
城市Tainan
期間20/12/0722/12/07

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