Implementation of Dopant-Free Hafnium Oxide Negative Capacitance Field-Effect Transistor

Autor: Chun-Hu Cheng, Chun-Yuan Tu, Chia-Chi Fan, Hsiao-Hsuan Hsu, Chun-Yen Chang
Rok vydání: 2019
Předmět:
Zdroj: IEEE Transactions on Electron Devices. 66:825-828
ISSN: 1557-9646
0018-9383
DOI: 10.1109/ted.2018.2881099
Popis: For the first time, we successfully demonstrated the dopant-free HfO2 negative capacitance (NC) transistor featuring a low gate-overdrive voltage and a nearly hysteresis-free sub-40 mV/dec swing. These excellent performances can be ascribed to the reduction of the monoclinic phase suppressed with the thickness scaling and gate stress engineering favorably rearranging oxygen vacancies to boost orthorhombic phase transition. The highly scalable and dopant-free NC transistor shows the potential for the application of advanced CMOS technology.
Databáze: OpenAIRE