A new robust non-local algorithm for band-to-band tunneling simulation and its application to Tunnel-FET

A new non-local algorithm for accurately calculating the band-to-band tunneling current suitable for TCAD semiconductor simulators is proposed in this abstract. The proposed algorithm captures the essential physics of multi-dimensional tunneling in a 2D structure, and is designed to be robust and to achieve independence on the mesh grid. The new algorithm enables accurate modeling of T-FET and investigation of its device physics. Application on T-FET is demonstrated. The physical origin of the saturation of I_d-V_d curve of T-FET is analyzed and clarified for the first time.