Light-Emitting Device
AssigneeEpistar Corporation
InventorsYing Ming Chen, Tzu Chieh Hsu, Jhih-Sian Wang, Chien-Fu Huang, Shih-I Chen
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Abstract
A light-emitting device includes a semiconductor light-emitting stack; a current injected portion formed on the semiconductor light-emitting stack; an extension portion having a first branch radiating from the current injected portion and a second branch extending from the first branch; an electrical contact structure between the second branch and the semiconductor light-emitting stack and having a first width; and a current blocking structure located right beneath the electrical contact structure and having a second width larger than the first width.
Claims20
A light-emitting device comprising:
- a semiconductor light-emitting stack comprising a center and an edge;
- a current injected portion on an upper surface of the semiconductor light-emitting stack, and located near the center of the upper surface of semiconductor light-emitting stack;
- and
- an extension portion on the semiconductor light-emitting stack,
- wherein the extension portion comprises multiple first branches, multiple second branches cross the first branches, and multiple third branches parallel to the edge,
- wherein one end of each first branch is connected with the current injected portion, and the other end of each first branch is connected with one of the third branches.
Dependencies are inferred from the claim text.