SEMICONDUCTOR THIN FILM AND PROCESS FOR FABRICATING THE SAME

摘要

An InP semiconductor thin film is formed by a process in which an amorphous GaAs buffer layer (2) having a good surface flatness, and then an amorphous InP buffer layer (3) having a good surface flatness are formed on an Si substrate (1), and then an InP monocrystalline thin film (4) is grown on the InP buffer layer (3). GaAs has a lattice constant intermediate between Si used as the substrate and InP, so the lattice mismatch is reduced.