Patent ID: 6334901
Filing Date: 2002-01-01
Classification: C30B

Abstract:
An apparatus for forming a crystal of a semiconductor, comprising a growth vessel enclosing a substrate, means for heating said substrate, means for evacuating said growth vessel to a vacuum, a pulse-form gas introduction nozzle means connected to external gas sources for alternately introducing a respective component element of a compound crystal to be grown on said substrate disposed in said growth vessel, radiation emitting means, synchronized with said pulse-form gas introduction nozzle means, for emitting and directing radiation having a wavelength of 180 to 600 nm toward and onto said substrate, said radiation emitting means located outside the growth vessel, and a window pane portion, having a window pane material which is transparent to said radiation, located at a wall of the growth vessel for directing said radiation toward said substrate, such that a semiconductor growth layer having a film thickness as small as a single molecule layer is formed on said substrate.