Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – In combination with or also constituting light responsive...
Reexamination Certificate
2006-06-21
2008-09-30
Nguyen, Joseph (Department: 2815)
Active solid-state devices (e.g., transistors, solid-state diode
Incoherent light emitter structure
In combination with or also constituting light responsive...
C257S085000, C257S091000, C257S094000, C257S099000, C257S100000
Reexamination Certificate
active
07429755
ABSTRACT:
A high power LED comprises a substrate. An N-type semiconductor layer, an active layer and a P-type semiconductor layer are sequentially deposited on the substrate. A semi-insulator layer or a non-N-type semiconductor layer can be interposed between the N-type semiconductor layer and substrate. At least one N-type electrode is connected to the N-type semiconductor layer and is exposed to an opening of the active layer and P-type semiconductor layer. The N-type electrode with a centralized pattern is formed on the middle of the LED. Furthermore, at least one P-type electrode is coupled to the P-type semiconductor layer. The P-type electrode is arranged like a closed ring or an open ring surrounding the N-type electrode. Therefore, the distribution of current paths is dispersed, and illumination areas are simultaneously uniform.
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Advanced Optoelectronic Technology Inc.
Nguyen Joseph
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