Patent ID: 6914264
Filing Date: 2005-07-05
Classification: H01L

Abstract:
1. A GaN light emitting diode structure, comprising: a substrate; a GaN semiconductor stack layer formed on said substrate; said GaN semiconductor stack layer having a first upper surface and a second upper surface; a digital transparent layer formed on said first upper surface, said digital transparent layer having a stack of alternating Al(x)In(y)Ga(1-x-y)N(z)P(1-z) and Al(p)In(q)Ga(1-p-q)N(r)P(1-r) layers, wherein the values of x, y, z, p, q, r, are between 0 and 1; a first ohmic contact electrode formed on said digital transparent layer for P-type ohmic contact; and a second ohmic contact electrode formed on said second upper surface for N-type ohmic contact.