Window interface layer of a light-emitting diode

Details Window interface layer of a light-emitting diode Window interface layer of a light-emitting diode

2007-04-03

2007-04-03

Dang, Phuc T. (Department: 2818)

Active solid-state devices (e.g., transistors, solid-state diode

Thin active physical layer which is

Heterojunction

C257S013000, C372S042000

Reexamination Certificate

active

11500330

ABSTRACT:
This invention is about a window interface layer in a light-emitting diode which comprises an n-type GaAs substrate with an n-type ohmic electrode at the bottom side thereof; an n-type AlGaInP cladding layer formed atop the substrate; an undoped AlGaInP active layer formed atop the n-type cladding layer; a p-AlGaInP cladding layer formed atop the active layer; a p-type window layer made of GaP; a p-type ohmic electrode formed atop the p-type window layer; and a highly doped p-type interface layer made of GaxIn1-xP (0.6≦x≦0.9) and interposed between the p-type cladding layer and p-type window layer wherein the highly doped p-GaInP interface layer possesses a band gap which is higher than that of the active layer and, however, smaller than that of the p-type cladding layer, and wherein the lattice constant lies between GaAs and GaP. In this way, the p-GaInP interface layer is interposed between a p-GaP window layer and a p-AlGaInP cladding layer for enhancing the film quality and the luminous efficiency as well as improving the electric property.

REFERENCES:
patent: 5045894 (1991-09-01), Migita et al.
patent: 6995401 (2006-02-01), Yamada et al.

Affiliated with

Also associated with

Rating

Window interface layer of a light-emitting diode does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Window interface layer of a light-emitting diode, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Window interface layer of a light-emitting diode will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3800660