LED with series-connected monolithically integrated mesas
First Claim
1. A light emitting device comprising:
- an electrically insulating substrate;
a plurality of elongated light emitting diode mesas disposed generally parallel to one another on the substrate, the mesas being electrically isolated from one another, each mesa defmed by a stack of layers including a first conductivity type layer disposed between the substrate and a second conductivity type layer; and
electrically conductive connection material disposed on the substrate between neighboring elongated light emitting diode mesas, the conductive material electrically connecting the first conductivity type layer of one mesa with the second conductivity type layer of the neighboring mesa along the long dimension of the neighboring elongated mesas to series-interconnect the light emitting diode mesas.
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Accused Products
Abstract
A light emitting semiconductor device die (10, 110, 210, 310) includes an electrically insulating substrate (12, 112). First and second spatially separated electrodes (60, 62, 260, 262, 360, 362) are disposed on the electrically insulating substrate. The first and second electrodes define an electrical current flow direction directed from the first electrode to the second electrode. A plurality of light emitting diode mesas (30, 130, 130′, 230, 330) are disposed on the substrate between the first and second spatially separated electrodes. Electrical series interconnections (50, 150, 250, 350) are disposed on the substrate between neighboring light emitting diode mesas. Each series interconnection carries electrical current flow between the neighboring mesas in the electrical current flow direction.
124 Citations
25 Claims
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1. A light emitting device comprising:
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an electrically insulating substrate;
a plurality of elongated light emitting diode mesas disposed generally parallel to one another on the substrate, the mesas being electrically isolated from one another, each mesa defmed by a stack of layers including a first conductivity type layer disposed between the substrate and a second conductivity type layer; and
electrically conductive connection material disposed on the substrate between neighboring elongated light emitting diode mesas, the conductive material electrically connecting the first conductivity type layer of one mesa with the second conductivity type layer of the neighboring mesa along the long dimension of the neighboring elongated mesas to series-interconnect the light emitting diode mesas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A light emitting semiconductor device die comprising:
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an electrically insulating substrate;
a plurality of series-interconnected light emitting diode mesas disposed on the substrate;
n-type and p-type electrodes electrically connecting with the plurality of series-interconnected light emitting diode mesas;
an insulating layer disposed over at least a portion of the plurality of series-interconnected light emitting diode mesas; and
electrical bonding pads disposed on the insulating layer, the electrical bonding pads electrically connecting with the n-type and p-type electrodes through gaps in the insulating layer, the electrical bonding pads having a larger area than the corresponding n-type and p-type electrodes. - View Dependent Claims (12)
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13. A light emitting semiconductor device die comprising:
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an electrically insulating substrate;
a linear arrangement of light emitting diode mesas disposed on the substrate;
electrical series interconnections disposed on the substrate between neighboring light emitting diode mesas of the linear arrangement, the series interconnections interconnecting the light emitting diode mesas in series to form a series-interconnected linear arrangement of light emitting diode mesas; and
first and second electrodes electrically connecting at opposite ends with the series-interconnected linear arrangement of light emitting diode mesas, the linear arrangement of light emitting diode mesas extending in the linear direction between the first and second electrodes. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. A light emitting semiconductor device die comprising:
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an electrically insulating substrate;
first and second spatially separated electrodes disposed on the electrically insulating substrate, the first and second electrodes defining an electrical current flow direction directed from the first electrode to the second electrode;
a plurality of light emitting diode mesas disposed on the substrate between the first and second spatially separated electrodes; and
electrical series interconnections disposed on the substrate between neighboring light emitting diode mesas, each series interconnection carrying electrical current flow between the neighboring mesas in the electrical current flow direction. - View Dependent Claims (23, 24, 25)
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Specification