Vertical GaN light emitting diode and method for manufacturing the same
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Accused Products
Abstract
Disclosed are a vertical GaN light emitting diode and a method for manufacturing the same. The vertical GaN light emitting diode comprises a first conductive GaN clad layer with an upper surface provided with a first contact formed thereon, an active layer formed on a lower surface of the first conductive GaN clad layer, a second conductive GaN clad layer formed on a lower surface of the active layer, a conductive adhesive layer formed on the second conductive GaN clad layer, and a conductive substrate, with a lower surface provided with a second contact formed thereon, formed on a lower surface of the conductive adhesive layer. The method for manufacturing the vertical GaN light emitting diodes comprises the step of removing the sapphire substrate from the light emitting structure so as to prevent the damages on a GaN single crystal plane of the structure.
33 Citations
17 Claims
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1-6. -6. (canceled)
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7. A method for manufacturing GaN light emitting diodes, comprising the steps of:
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(a) forming a light emitting structure on a sapphire substrate, said light emitting structure including a first conductive GaN clad layer, an active layer and a second conductive GaN clad layer sequentially stacked on the sapphire substrate;
(b) cutting the light emitting structure into plural units so that each of the unit light emitting structures has a designated size;
(c) attaching a conductive substrate to exposed upper surfaces of the unit light emitting structures using a conductive adhesive layer;
(d) removing the sapphire substrate from the unit light emitting structures;
(e) forming first and second contacts respectively on the surface of the first conductive clad layer, from which the sapphire substrate is removed, and the exposed surface of the conductive substrate; and
(f) cutting the resulting structure provided with the first and second contacts into plural unit light emitting diodes. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification