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US 8,299,481 B2Granted
Wafer-scaled light-emitting structure
AssigneeEpistar Corporation
InventorsChin-San Tao, Tzu-Chien Hsu, Tsen-Kuei Wang
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Abstract
This invention discloses a wafer-scaled light-emitting structure comprising a supportive substrate; an anti-deforming layer; a bonding layer; and a light-emitting stacked layer, wherein the anti-deforming layer reduces or removes the deformation like warp caused by thinning of the substrate.
Claims12
A light-emitting structure, comprising:
- a supportive substrate;
- an anti-deforming layer for reducing the deformation of the light-emitting structure located on the supportive substrate;
- a bonding layer located on the anti-deforming layer;
- and
- a light-emitting stacked layer located on the anti-deforming layer, wherein the bonding layer connects the anti-deforming layer and the light-emitting stacked layer and the light-emitting stacked layer comprises at least an active layer;
- wherein a thickness of the supportive substrate is smaller than about 70 μm, and
- wherein the light-emitting structure is devoid of any substrate comprising a surface on which the light-emitting structure is grown.
4 more elements
Dependencies are inferred from the claim text.