Tuning semiconductor device properties with static charge

Some transistor-based components, including amplifiers, require transistors with different switch-on voltages. Usually, this implies different materials or dimensions, and requires complex patterning methods. We are developing methods of imparting static charge to the transistors during the device fabrication so that transistors with the same materials and dimensions can serve different functions in circuits. We utilize extremely hydrophobic dielectrics and semiconductors to maximize environmental stability of the voltage shifts. This work is a collaboration with Professors James West and Andreas Andreou of the Department of Electrical Engineering.