Tunnel Field Effect Transistor with Ferroelectric Gate Insulator. 2019

Kitae Lee, and Junil Lee, and Sihyun Kim, and Euyhwan Park, and Ryoongbin Lee, and Hyun-Min Kim, and Sangwan Kim, and Byung-Gook Park
Department of Electrical and Computer Engineering, Seoul National University, Seoul 08826, Republic of Korea.

Ferroelectric tunnel field effect transistor (Fe-TFET) having improved DC performance in comparison to the conventional TFET (c-TFET) is proposed and investigated through the technology computer-aided design (TCAD) simulation. By inserting ferroelectric material into the gate insulator of TFET, enhanced on-current (Ion) is obtained. It is attributed to the polarization characteristic of the ferroelectric materials which brings the capacitance boosting effect. Through the TCAD simulation, the characteristics of the ferroelectric material for the optimal performance conditions are also studied.

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