Patent ID: 7683457
Filing Date: 2010-03-23
Classification: C30B,H01L

Abstract:
1. A group I-VII semiconductor single crystal thin film formed on a substrate made from ionic single crystals, the group I-VII semiconductor single crystal thin film being formed on a buffer layer while an electron beam is irradiated on the group I-VII semiconductor single crystal thin film, the buffer layer being for alleviating distortion caused due to a difference in lattice constant between the substrate and the group I-VII semiconductor single crystal thin film, and the group I-VII semiconductor single crystal thin film being a thin film of single composition and being a combination of a layer formed while irradiating the electron beam thereon and a layer formed while not irradiating the electron beam thereon; wherein an acceleration voltage HV of the electron beam is 0 (kV)<HV≦30 (kV); a filament current FI of the electron beam is 0 (A)<F1<5 (A); and an irradiation current HI of the electron beam is 0 (A)<HI≦150 (μA).