Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure
Reexamination Certificate
2007-03-23
2011-11-01
Sandvik, Benjamin (Department: 2893)
Active solid-state devices (e.g., transistors, solid-state diode
Incoherent light emitter structure
C257S098000, C257S101000, C257S103000, C438S022000, C438S029000, C438S045000
Reexamination Certificate
active
08049227
ABSTRACT:
A group III nitride semiconductor light emitting device with a double sided electrode structure which has a low driving voltage as well as excellent light emission efficiency is provided, and the group III nitride semiconductor light emitting device includes at least an impurity layer30composed of a high concentration layer3bmade of a group III nitride semiconductor containing high concentration of impurity atoms, and a low concentration layer3amade of a group III nitride semiconductor containing impurity atoms whose concentration is lower than that of the high concentration layer3b; and a group III nitride semiconductor layer2, and the lower concentration layer3aand the high concentration layer3bare continuously formed on the group III nitride semiconductor layer2in this order to form the group III nitride semiconductor light emitting device.
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Miki Hisayuki
Sakai Hiromitsu
Khan Farid
Sandvik Benjamin
Showa Denko K.K.
Sughrue & Mion, PLLC
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