Patent ID: 7566908
Filing Date: 2009-07-28
Classification: H01L

Abstract:
1. A light emitting diode element comprising: a substrate, a first dopant semiconductor layer, a second dopant semiconductor layer, and light emitting quantum well stack layer substantially between the first and the second dopant semiconductor layers; with the second dopant semiconductor layer, the quantum well and a portion of the first dopant semi conductor layer defining a mesa; a first electrode coupled to an exposed top surface of the first dopant semiconductor layer, and the first electrode having a body approximate a corner of the exposed top surface of the first dopant semiconductor layer and wings extending from the body, each wing of the first electrode extending approximate a corresponding edge of the corner of the exposed top surface; and a second electrode coupled to a top of the mesa, the second electrode having a body approximate a corner of the top of the mesa and wings extending from the body, each wing of the second electrode extending approximate a corresponding edge of the corner of the top of the mesa, with each wing reaching about two thirds of a distance of a length of the corresponding edge; the body of the first electrode extending from the corner of the exposed top surface of the first dopant semiconductor layer towards the corner of the top of the mesa with the second electrode about one quarter of the distance from the corner of the exposed top surface with the first electrode to the corner of the top of the mesa with the second electrode, and the body of the second electrode extending from the corner of the top of the mesa towards the corner of the exposed top surface with the first electrode about one quarter of the distance from the corner of the top of the mesa with the second electrode to the corner of the exposed top surface with the first electrode.