Research Projects (UR)

Research Associate

• Worked on device model implementation for mixed-mode circuit simulation. Implemented diode, MOS level 1, 2, 3, and Gummel-Poon BJT models.
• Conducted experimental and theoretical research on hot-carrier injection phenomena in MOS devices, and proposed an offset cancellation techniques for MOS precision analog integrated circuits.
• Developed measurement protocols for automatic device/circuit characterization using the HP 4062C Parametric Test System.
• Responsible for maintaining the HP 4062C Parametric Test System and administrating the HP 330 workstation.
• Coordinated research activities in the Analog Design Automation Research Group.

Graduate Research Fellow

• Developed a general-purpose, self-consistent ensemble Monte Carlo program (EMCUR -- Ensemble Monte Carlo at the University of Rochester) for modeling compound semiconductor devices with variable band structures (an early version of the program has been licensed to Siemens Corp., New Jersey).
• Investigated high-field transport and ultrafast phenomena in GaAs, as well as space-charge effect and relaxation processes of photogenerated carriers through ensemble Monte Carlo simulations.
• Performed various Monte Carlo simulations on time- and space-dependent phenomena in bulk GaAs in both transient and steady-state conditions, and in ballistic transport and heterostructure hot-electron devices.
• Published two papers in the Journal of Applied Physics.

Graduate Research Assistant

• Performed experimental investigations on the validity of the SUPREM model for thermal oxidation with a complete fabrication process from mask design to C–V measurements.
• Performed SUPREM-III simulations on a twin-tub CMOS process and substrate doping dependence of thermal oxidation.