Patent ID: 9666760
Date: 2017-05-30
CPC Classifications: H01L

Claim:
1. A method for creating a first carrier injection electrode for a light-emitting diode, the method comprising: determining a current spreading length of a stack of the light-emitting diode intended to be equipped with a first electrode, and determining from the determined current spreading length at least one characteristic of the first electrode to be arranged on an emissive face of the stack of the light-emitting diode, so that the first electrode is configured in such a way that any point of an emissive surface is situated at no more than a predetermined maximum distance from the first electrode dependent on the current spreading length of the light-emitting diode, and the first electrode comprising a plurality of branches substantially parallel to one another, the distance separating two adjacent branches being between ⅔ of the current spreading length and 1 times the current spreading length plus 200 μm, wherein the emissive face is defined by a face on the light-emitting diode through which a majority of light is emitted, and wherein the emissive surface is delimited by areas of the emissive face of the light-emitting diode not covered by the first electrode, wherein the current spreading length corresponds to a distance for which the current density has dropped by a ratio 1/e between (i) a first point contained in a plane of an active layer of the stack and peripheral to a volume shadowed by the first electrode and (ii) a second point contained in the same plane, wherein e is Euler's number.