Light emitting device and method of forming the same
AssigneeEpistar Corporation
InventorsMin-Hsun HSIEH, Chih-Chiang LU, Ching-Pu TAI
Life of this patent
Estimating the term…
Abstract
A light-emitting device includes a transparent substrate, a transparent adhesive layer on the transparent substrate, a first transparent conductive layer on the transparent adhesive layer, a multi-layer epitaxial structure and a first electrode on the transparent conductive layer, and a second electrode on the multi-layer epitaxial structure. The multi-layer epitaxial structure includes a light-emitting layer. The transparent substrate has a first surface facing the transparent adhesive layer and a second surface opposite to the first surface, wherein the area of the second surface is larger than that of the light-emitting layer, and the area ratio thereof is not less than 1.6.
Claims20
A light-emitting device, comprising:
- an epitaxial structure comprising an active layer;
- a substrate, passable to light from the epitaxial structure, and having a top surface being not less than 1.6 times an area of the active layer;
- a first transparent layer, directly connected to the substrate and comprising a widest width smaller than that of the substrate and larger than that of the epitaxial structure;
- a second transparent layer, made of oxygen and only one metallic element, arranged between the first transparent layer and the epitaxial structure;
- and
- a first electrode arranged on the first transparent layer and the second transparent layer which are not covered by the active layer,
- wherein the second transparent layer and the substrate have outmost sidewalls which are not coplanar with each other.
Dependencies are inferred from the claim text.