Patent ID: 6835966
Filing Date: 2004-12-28
Classification: C30B,H01L

Abstract:
A group III nitride compound semiconductor comprising:a substrate; a first group III nitride compound semiconductor AlxlGaylIn1-xl-ylN (0&lE;xl&lE;1, 0&lE;yl&lE;1, 0&lE;xl+yl&lE;1) which is formed on said substrate into an island pattern comprising any of a dot pattern, a striped pattern, and a grid pattern such that substrate-exposed portions ar formed in a scattered manner; and a second group III nitride compound semiconductor Alx2Gay2In1-x2-y2N (0&lE;x2&lE;1, 0&lE;y2&lE;1, 0&lE;x2+y2&lE;1) which causes growth from an island or islands of said first gallium nitride group compound semiconductor serving as nuclei (seeds), so that said second gallium nitride group compound semiconductor is formed by lateral growth above said substrate-exposed portions.