On the seed crystal substrate of the cubic it possesses the surface which restricts the field where it becomes origin of production mannered

摘要

PROBLEM TO BE SOLVED: To provide a cubic crystal-type nitride semiconductor wafer which yields a green light emission device having a practical light emission efficiency, a method for manufacturing the same, and a method for manufacturing a free-standing substrate of the cubic crystal-type nitride semiconductor.;SOLUTION: The surface of seed crystal substrate 1 of cubic crystals is covered with a material on which a nitride semiconductor 2 hardly grow and overlaid with mask 3 having openings 4 which expose the surface of the seed crystal substrate 1 in an orderly or random manner. The nitride semiconductor 2 grows from the openings 4 of the mask 3. The nitride semiconductor 2 in the form of a continuous film locally contacting with the seed crystal substrate 1 is formed.;COPYRIGHT: (C)2011,JPO&INPIT