Patent ID: 8262796

Claim:
A thin-film single crystal growing method, comprising: preparing a substrate comprising a β-Ga 2 O 3 single crystal; irradiating an excitation beam on a metallic target comprising Ga or an alloy comprising Ga in an atmosphere comprising at least a gas selected from an oxygen gas, an oxygen gas comprising ozone, a pure ozone gas, an N 2 O gas, an NO 2 gas, an oxygen gas comprising oxygen radicals, and oxygen radicals; and combining chemical species including one of atoms, molecules, and ions released from the metallic target by irradiation of the excitation beam with the gas to form a thin-film single crystal β-Ga 2 O 3 on the substrate, wherein the β-Ga 2 O 3 single crystal substrate is grown in a b-axis <010> direction.