Light-emitting element with electrode structure
First Claim
1. A light-emitting element, comprising:
- a substrate comprising a surface;
a light-emitting semiconductor stack, formed on the substrate, comprising;
a first semiconductor layer;
a second semiconductor layer on the first semiconductor layer; and
a light-emitting layer between the first semiconductor layer and the second semiconductor layer;
a first electrode on the first semiconductor layer;
a first protection layer covering a sidewall of the light-emitting semiconductor stack;
a second protection layer comprising a first through hole exposing the first electrode and a plurality of second through holes, wherein the second protection layer covers and surrounds the first protection layer, and the first protection layer and the second protection layer directly contact a surface of the first semiconductor layer, wherein two of the plurality of second through holes are formed on opposite sides of the first electrode from a top view of the light-emitting element, wherein the first through hole is not between the two of the plurality of second through holes;
a reflective layer formed on the light-emitting semiconductor stack; and
a conductive contact layer formed on the second protection layer,wherein the light-emitting semiconductor stack, the first electrode, the first protection layer, the second protection layer, the reflective layer, and the conductive contact layer respectively comprises a first inclined side surface relative to the surface of the substrate, and wherein an angle between a side face and a lower face of the first electrode ranges from 15 degrees to 70 degrees.
0 Assignments
0 Petitions
Accused Products
Abstract
A light-emitting element comprises a substrate; a light-emitting semiconductor stack on the substrate, the light-emitting semiconductor stack comprising a first semiconductor layer, a second semiconductor layer on the first semiconductor layer, and a light-emitting layer between the first semiconductor layer and the second semiconductor layer; a first electrode on the first semiconductor layer; a reflective layer formed on the light-emitting semiconductor stack; a protection layer formed on the light-emitting semiconductor stack; and a conductive contact layer formed on the light-emitting semiconductor stack, wherein each layer above the substrate comprises a side surface inclined to a top surface of the substrate.
17 Citations
18 Claims
-
1. A light-emitting element, comprising:
-
a substrate comprising a surface; a light-emitting semiconductor stack, formed on the substrate, comprising; a first semiconductor layer; a second semiconductor layer on the first semiconductor layer; and a light-emitting layer between the first semiconductor layer and the second semiconductor layer; a first electrode on the first semiconductor layer; a first protection layer covering a sidewall of the light-emitting semiconductor stack; a second protection layer comprising a first through hole exposing the first electrode and a plurality of second through holes, wherein the second protection layer covers and surrounds the first protection layer, and the first protection layer and the second protection layer directly contact a surface of the first semiconductor layer, wherein two of the plurality of second through holes are formed on opposite sides of the first electrode from a top view of the light-emitting element, wherein the first through hole is not between the two of the plurality of second through holes; a reflective layer formed on the light-emitting semiconductor stack; and a conductive contact layer formed on the second protection layer, wherein the light-emitting semiconductor stack, the first electrode, the first protection layer, the second protection layer, the reflective layer, and the conductive contact layer respectively comprises a first inclined side surface relative to the surface of the substrate, and wherein an angle between a side face and a lower face of the first electrode ranges from 15 degrees to 70 degrees. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A light-emitting element, comprising:
-
a substrate; a light-emitting semiconductor stack on the substrate, comprising; a first semiconductor layer; a second semiconductor layer on the first semiconductor layer; and a light-emitting layer between the first semiconductor layer and the second semiconductor layer; and a first conductive part and a second conductive part on the light-emitting semiconductor stack, wherein the first conductive part, the second conductive part and the substrate each comprises an upper surface, a horizontal distance between the first conductive part and the second conductive part is at least 50 μ
m, a first height between the upper surface of the first conductive part and the upper surface of the substrate is larger than a second height between the upper surface of the second conductive part and the upper surface of the substrate. - View Dependent Claims (15, 16, 17, 18)
-
Specification