초록 ▼

A transparent conductive layer is deposited between the electrode and the semiconductor diode to spread the current evenly to the diode and to reduce the series resistance. Tin indium oxide can be used as the transparent conductive layer. The transparent conductive layer is particularly applicable t

A transparent conductive layer is deposited between the electrode and the semiconductor diode to spread the current evenly to the diode and to reduce the series resistance. Tin indium oxide can be used as the transparent conductive layer. The transparent conductive layer is particularly applicable to a blue light emitting diode, where InGaN is used as the light emitting layer.

대표청구항 ▼

[ What is claimed is:] [1.] A light emitting diode, comprising:a transparent insulating substrate;a first conductivity type GaN as a buffer directly over said transparent insulating substrate;a first conductivity type (Al)GaN as a lower cladding layer directly over said first conductivity type GaN;a

[ What is claimed is:] [1.] A light emitting diode, comprising:a transparent insulating substrate;a first conductivity type GaN as a buffer directly over said transparent insulating substrate;a first conductivity type (Al)GaN as a lower cladding layer directly over said first conductivity type GaN;an InGaN light-emitting layer directly over said first conductivity type (Al)GaN;a second conductivity type semiconductor material as a contact layer directly over said InGaN light-emitting layer;a second contact layer with a carrier concentration greater than 5*10.sup.18 cm.sup.-3 and a thickness of less than 500 Angstroms directly over said second conductivity type semiconductor material;a transparent conductive layer selected from the group consisting of indium tin oxide (ITO), tin oxide and indium oxide as a current spreading layer for reducing the spreading resistance of the light emitting diode directly over said second contact layer;a first electrode formed on the partially exposed area of the first conductivity type GaN; anda second electrode formed on top of the transparent conductive layer.