Semiconductor light emitting devices

Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – With housing or contact structure

Reexamination Certificate

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Reexamination Certificate

active

06847057

ABSTRACT:
A III-nitride device includes a first n-type layer, a first p-type layer, and an active region separating the first p-type layer and the first n-type layer. The device may include a second n-type layer and a tunnel junction separating the first and second n-type layers. First and second contacts are electrically connected to the first and second n-type layers. The first and second contacts are formed from the same material, a material with a reflectivity to light emitted by the active region greater than 75%. The device may include a textured layer disposed between the second n-type layer and the second contact or formed on a surface of a growth substrate opposite the device layers.

REFERENCES:
patent: 4169997 (1979-10-01), Logan et al.
patent: 4732621 (1988-03-01), Murata et al.
patent: 5365536 (1994-11-01), Seki
patent: 5376580 (1994-12-01), Kish et al.
patent: 5452316 (1995-09-01), Seki et al.
patent: 5990531 (1999-11-01), Taskar et al.
patent: 6122103 (2000-09-01), Perkins et al.
patent: 6288840 (2001-09-01), Perkins et al.
patent: 6309953 (2001-10-01), Fischer et al.
patent: 6449439 (2002-09-01), Boyd et al.
patent: 6486499 (2002-11-01), Krames et al.
patent: 6526082 (2003-02-01), Corzine et al.
patent: 6552905 (2003-04-01), Herring et al.
patent: 6593657 (2003-07-01), Elliott et al.
patent: 6642618 (2003-11-01), Yagi et al.
Tetsuya Takeuchi et al., “GaN-Based Light Emitting Diodes with Tunnel Junctions”, The Japanese Society of Applied Physics, Jpn. J. Appl. Phys. vol. 40 (2001) Part 2, No. 8B, Aug. 15, 2001, pp. L861-L863.
Seong-Ran Jeon et al., “Lateral current spreading in GaN-based light-emitting diodes utilizing tunnel contact junctions”, Applied Physics Letters, vol. 78, No. 21, May 21, 2001, pp. 3265-3267.
Xia Guo et al., “Tunnel-regenerated multiple-active-region light-emitting diodes with high efficiency”, Applied Physics Letters, vol. 79, No. 18, Oct. 29, 2001, pp. 2985-2986.
Satoru Tanaka et al., “Anti-Surfactant in III-Nitride Epitaxy -Quantum Dot Formation and Dislocation Termination-”, The Japan Society of Applied Physics, Jpn. J. Appl. Phys. vol. 39 (2000), Part 2, No. 8B, Aug. 15, 2000, pp. L831-834.

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