Light emitting diodes including integrated backside reflector and die attach

Light emitting diodes include a silicon carbide substrate having first and second opposing faces, a diode region on the first face, anode and cathode contacts on the diode region opposite the silicon carbide substrate and a hybrid reflector on the silicon carbide substrate opposite the diode region....

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Pun Arthur Fong-Yuen, Suh Doowon, Haberern Kevin Ward, Parker Winston T, Williams Bradley E, Donofrio Matthew, Bergmann Michael John
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:Light emitting diodes include a silicon carbide substrate having first and second opposing faces, a diode region on the first face, anode and cathode contacts on the diode region opposite the silicon carbide substrate and a hybrid reflector on the silicon carbide substrate opposite the diode region. The hybrid reflector includes a transparent layer having an index of refraction that is lower than the silicon carbide substrate, and a reflective layer on the transparent layer, opposite the substrate. A die attach layer may be provided on the hybrid reflector, opposite the silicon carbide substrate. A barrier layer may be provided between the hybrid reflector and the die attach layer.