Hot-Wall Chemical-Vapor-Deposition of Amorphous-Silicon and Its Application to Thin-Film Transistors

Abstract
Hot-wall chemical vapor deposition of amorphous-silicon has been investigated, aiming at a batch process for thin-film transistors (TFTs). High-performance TFTs (mobility=1.7 cm2/Vs, threshold voltage =9 V and subthreshold voltage swing =0.8 V/decade) have been successfully fabricated. Similar good TFT characteristics were obtained over a wide range of a-Si deposition conditions.