High power, high luminous flux light emitting diode and method of making same

A light-emitting diode, comprising:

• a substrate;
• a light-emitting structure disposed above the substrate along a vertical axis, the light-emitting structure including a first cladding layer and a second cladding layer;
• a first electrode a contact with the first cladding layer of the light-emitting structure, the first electrode having a projection extending in a first direction along a horizontal axis perpendicular to the vertical axis;
• and
• a second electrode in contact with the second cladding layer of the light-emitting structure, the second electrode having a least two projections extending in a second direction opposite the first direction along the horizontal axis, a portion of the projection of the first electrode disposed between and spaced apart from respective portions of the two projections of the second electrode;
• wherein the projection of the first electrode is tapered in the first direction.

A light-emitting diode comprising:

• a substrate;
• a light-emitting structure disposed above the substrate along a vertical axis, the light-emitting structure including a first cladding layer and a second cladding layer;
• a first electrode in contact with the first cladding layer of the light-emitting structure, the first electrode having a projection extending in a first direction along a horizontal axis perpendicular to the vertical axis;
• and
• a second electrode in contact with the second cladding layer of the light-emitting structure, the second electrode having at least two projections extending in a second direction opposite the first direction along the horizontal axis, a portion of the projection of the first electrode disposed between and spaced apart from respective portions of the two projections of the second electrode;
• wherein the portions of the projections of the second electrode are tapered in the second direction.

A light-emitting diode comprising:

• a substrate;
• a light-emitting structure disposed above the substrate along a vertical axis, the light-emitting structure including a first cladding layer and a second cladding layer;
• a first electrode in contact with the first cladding layer of the light-emitting structure, the first electrode having a projection extending in a first direction along a horizontal axis perpendicular to the vertical axis;
• and
• a second electrode in contact with the second cladding layer of the light-emitting structure, the second electrode having at least two projections extending in a second direction opposite the first direction along the horizontal axis, a portion of the projection of the first electrode disposed between and spaced apart from respective portions of the two projections of the second electrode;
• wherein the first electrode includes an additional projection extending in the first direction, and the second electrode includes a third projection extending in the second direction, and the two projections of the first electrode are disposed between the three projections of the second electrode;
• wherein the projections of the first electrode and the second electrode are tapered.

A light-emitting diode comprising:

• a substrate;
• a reflective layer disposed below the substrate and in connection with a bottom side of the substrate;
• a light-emitting structure disposed above the substrate along a vertical axis, the light-emitting structure including a first cladding layer and a second cladding layer;
• a thin metal layer disposed above the light-emitting structure along the vertical axis and in contact with the light-emitting structure;
• a first electrode disposed above the light-emitting structure along the vertical axis, extending through the thin metal layer along the vertical axis, and in contact with the first cladding layer of the light-emitting structure, the first electrode having a plurality of projections extending in a first direction along a horizontal axis perpendicular to the vertical axis, the projections being tapered in the first direction;
• and
• a second electrode disposed above an exposed surface of the second cladding layer along the vertical axis and in contact with the exposed surface, the second electrode having a plurality of projections extending in a second direction opposite the first direction along the horizontal axis, the projections of the second electrode being tapered in the second direction, the projections of the first electrode interspersed with and spaced apart from the projections of the second electrode.

A light-emitting diode comprising:

• a substrate;
• a light-emitting structure disposed above the substrate along a vertical axis, the light-emitting structure including a first cladding layer and a second cladding layer;
• a thin metal layer disposed above the light-emitting structure along the vertical axis and in contact with the light-emitting structure;
• a first electrode disposed above the light-emitting structure along the vertical axis, extending through the thin metal layer along the vertical axis, and in contact with the first cladding layer of the light-emitting structure, the first electrode having a plurality of projections extending in a first direction along a horizontal axis perpendicular to the vertical axis, at least one projection having an enlarged portion at its end;
• and
• a second electrode disposed above an exposed surface of the second cladding layer along the vertical axis and in contact with the exposed surface, the second electrode having a plurality of projections extending in a second direction opposite the first direction along the horizontal axis, the projections of the first electrode interspersed with and spaced apart from the projections of the second electrode to define a region capable of passing light.

A light-emitting diode comprising:

• a substrate;
• a reflective layer disposed below the substrate and in connection with a bottom side of the substrate;
• a light-emitting structure disposed above the substrate along a vertical axis, the light-emitting structure including a P cladding layer and an N cladding layer, the P cladding layer disposed above the N cladding layer along the vertical axis;
• a thin metal layer disposed above the P cladding layer of the light-emitting structure along the vertical axis and in contact with the P cladding layer;
• a P electrode disposed above the P cladding layer of the light-emitting structure along the vertical axis to define a first elevation, extending through the thin metal layer along the vertical axis, and in contact with the P cladding layer, the P electrode having a plurality of projections extending in a first direction along a horizontal axis perpendicular to the vertical axis, the projections being tapered in the first direction and having enlarged regions at respective ends of the projections;
• and
• an N electrode disposed above the N cladding layer of the light-emitting structure along the vertical axis, the N electrode in contact with a surface of the N cladding layer in a well formed to expose the surface, the N electrode defining a second elevation offset from the first elevation along the vertical axis, the N electrode having a plurality of projections extending in a second direction opposite the first direction along the horizontal axis, the projections of the N electrode being tapered in the second direction and having enlarged regions at respective ends of the projections, the projections of the P electrode interspersed with and spaced apart from the projections of the N electrode.