We present a method of coupling drift-diffusion simulations with quantum transmitting boundary method (QTBM) tunnel current calculations. This allows self-consistent simulation of thin oxide devices in which large tunnel currents can flow. Simulated results are presented for a thin oxide Al/SiO2/Si structure and an Al/SiO2/n-Si/p-Si tunnel switching diode. We demonstrate the careful use of the recombination lifetime as an adjustable or relaxable parameter in order to obtain converging solutions.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering