Active solid-state devices (e.g. – transistors – solid-state diode – Thin active physical layer which is – Heterojunction
Reexamination Certificate
2011-01-11
2011-01-11
Sefer, A. (Department: 2893)
Active solid-state devices (e.g., transistors, solid-state diode
Thin active physical layer which is
Heterojunction
C257S014000, C257SE33008, C257SE33012, C257SE33025, C257SE33026, C257SE33034
Reexamination Certificate
active
07868316
ABSTRACT:
There is provided a nitride semiconductor device. A nitride semiconductor device according to an aspect of the invention may include: an n-type nitride semiconductor layer; a p-type nitride semiconductor layer; an active layer provided between the n-type and p-type nitride semiconductor layers and having quantum well layers and quantum barrier layers alternately stacked on each other; and an electron blocking layer provided between the active layer and the p-type nitride semiconductor layer, and having a plurality of first nitride layers formed of a material having a higher band gap energy than the quantum barrier layers and a plurality of second nitride layers formed of a material having a lower band gap energy than the first nitride layers, the first and second nitride layers alternately stacked on each other to form a stacked structure, wherein the plurality of first nitride layers have energy levels bent at predetermined inclinations, and with greater proximity to the p-type nitride semiconductor layer, the first nitride layers have a smaller inclination of the energy level.
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Park Ki Ho
Son Joong Kon
Yoon Suk Ho
McDermott Will & Emery LLP
Parker Allen L
Samsung Electro-Mechanics Co., LTD
Sefer A.
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