Patent ID: 6515306
Filing Date: 2003-02-04
Classification: B82Y,H01L,H01S

Abstract:
A structure of light emitting diode, comprising:a substrate; a nucleation layer, formed on the substrate; a conductive buffer layer, formed on the nucleation layer; a first confinement layer, formed on the conductive buffer layer, wherein the first confinement layer and the conductive buffer layer are doped to have the same conductive type; an active layer, formed on the first confinement layer, wherein the active layer comprises a doped III-N group compound semiconductor; a second confinement layer, formed on the active layer, wherein the second confinement layer and the first confinement layer has different conductive type; a contact layer, formed on the second confinement layer, wherein the contact layer comprises a strained-layer superlattices, which is doped to has a different conductive type from the second confinement layer; an anode layer, formed on the contact layer; and a cathode layer, formed on the conductive buffer layer, but separated from the first confinement layer, the second confinement layer, the active layer, the contact layer, and the anode layer.