Effects of surface states on breakdown characteristics of narrowly-recessed-gate GaAs MESFETs are studied by two-dimensional simulation. Particularly, it is discussed how the characteristics depend on the surface-state densities and on the recess structure parameters. It is shown that the breakdown voltage could be raised when moderate densities of surface states are included. However, it is suggested that in a case with relatively high densities of surface states, the breakdown voltage could be drastically lowered by introducing a narrowly-recessed-gate structure.
Journal: TechConnect Briefs
Volume: 1, Technical Proceedings of the 2002 International Conference on Modeling and Simulation of Microsystems
Published: April 22, 2002
Pages: 580 - 583
Industry sector: Sensors, MEMS, Electronics
Topics: Modeling & Simulation of Microsystems