Near room temperature lithographically processed metal-oxide transistors

Abstract

A fully lithographic process at near-room-temperature was developed for the purpose of fabricating transistors based on metal-oxide channel materials. The combination of indium tin oxide (ITO) as the source/drain electrodes, zinc indium oxide (ZIO) as the semiconducting channel, and parylene as the dielectric was used to demonstrate the feasibility of such a low temperature lithographic process. This low processing temperature, roughly 150 C, enables the use of unconventional substrates such as glass or plastics, and can therefore simplify the fabrication of devices for low-cost, large-area electronics.