National Central University

Delta Electronics, Inc.

Chia-Hua Chan

Chii-Chang Chen

Shih-Peng Chen

Huang-Kun Chen

Horng-Jou Wang

Cheng-Yi Liu

Ching-Liang Lin

Tsing-Jen Chen

Chia-Hung Hou

A method for preparing patterned substrate by using nano- or micro-particles is disclosed, which comprises the following steps: (A) providing a substrate with a photoresist layer formed thereon; (B) coating a surface of the photoresist layer with plural nano- or micro-particles, to form a particle layer; (C) exposing and developing the photoresist layer to obtain a patterned photoresist layer; and (D) removing the particle layer. In addition, after the particle layer is removed, the method of the present invention further comprises: (E1) using the patterned photoresist layer as an etching template to etch the substrate; and (E2) removing the patterned photoresist layer to obtain a patterned substrate with plural cavities formed thereon.

Method for preparing patterned substrate by using nano- or micro- particles

A light-emitting diode (LED) apparatus includes a thermoconductive substrate, a thermoconductive adhesive layer, an epitaxial layer, a current spreading layer and a micro- or nano-roughing structure. The thermoconductive adhesive layer is disposed on the thermoconductive substrate. The epitaxial layer is disposed opposite to the thermoconductive adhesive layer and has a first semiconductor layer, an active layer and a second semiconductor layer. The current spreading layer is disposed between the second semiconductor layer of the epitaxial layer and the thermoconductive adhesive layer. The micro- or nano-roughing structure is disposed on the first semiconductor layer of the epitaxial layer. In addition, a manufacturing method of the LED apparatus is also disclosed.

Light-emitting diode apparatus and manufacturing method thereof

Growing community of inventors

Taoyuan Hsien, Taiwan

Chia-Hua Chan