Patent ID: 6503610
Filing Date: 2003-01-07
Classification: C30B,H01L,H01S,Y10T

Abstract:
A group III-V compound semiconductor comprising: a layer of a first group III-V compound semiconductor represented by the general formula InuGavAlwN, where 0&lE;u&lE;1, 0&lE;v&lE;1, 0&lE;w&lE;1, and u+v+w=1; a pattern formed on the layer of the first group III-V compound semiconductor and made of a material different from the first group III-V compound semiconductor and from a second group III-V compound semiconductor below; and a layer of the second group III-V compound semiconductor represented by the general formula InxGayAlzN where 0&lE;x&lE;1, 0&lE;y&lE;1, 0&lE;z&lE;1, and x+y+z=1, said layer is grown through the openings of the pattern; wherein voids are formed on the pattern, and threading dislocations in the layer of the second compound semiconductor are terminated by the voids.