Patent ID: 6664560
Filing Date: 2003-12-16
Classification: H01L,Y10S

Abstract:
A light omitting diode comprising:a silicon carbide substrate having a first conductivity type; a first gallium nitride layer above said SiC substrate having the same conductivity type as said substrate; a superlattice on said GaN layer formed of a plurality of repeating sets of alternating layers selected from the group consisting of GaN, InxGa1-xN, where 0xInyGa1-x-yN, where 0a second GaN layer on said superlattice baying the same conductivity type as said first GaN layer; a multiple quantum well on said second GaN layer; a third GaN layer on said multiple quantum well; a contact structure on said third GaN layer having the opposite conductivity type from said substrate and said first GaN layer; an ohmic contact to said SiC substrate; and an ohmic contact to said contact structure.