Complementary Strained Si GAA Nanowire TFET Inverter With Suppressed Ambipolarity

Autor: S. Mantl, Qing-Tai Zhao, Stefan Trellenkamp, P. Bernardy, G. V. Luong, Keyvan Narimani, A. T. Tiedemann
Rok vydání: 2016
Předmět:
Zdroj: IEEE Electron Device Letters. 37:950-953
ISSN: 1558-0563
0741-3106
DOI: 10.1109/led.2016.2582041
Popis: In this letter, we present complementary tunneling field-effect transistors (CTFETs) based on strained Si with gate all around nanowire structures on a single chip. The main focus is to suppress the ambipolar behavior of the TFETs with a gate–drain underlap. Detailed device characterization and demonstration of a CTFET inverter show that the ambipolar current is successfully eliminated for both p- and n-devices. The CTFET inverter transfer characteristics indicate maximum separation of the high/low level with a sharp transition (high voltage gain) at a $V_{\mathrm{ dd}}$ down to 0.4 V. In addition, high noise margin levels of 40% of the applied $V_{\mathrm{ dd}}$ are obtained.
Databáze: OpenAIRE