Industrial Technology Research Institute

Zhi-Cheng Hsiao

Yu-Hua Chen

Chao-Kai Hsu

Chien-Cheng Yang

Gen-Wen Hsieh

Cheng-Ta Ko

Ming-Ji Dai

An encapsulation of backside illumination photosensitive device including a circuit sub-mount, a backside illumination photosensitive device, a plurality of conductive terminals, and a heat dissipation structure is provided. The backside illumination photosensitive device includes an interconnection layer and a photosensitive device array, wherein the interconnection layer is located on the circuit sub-mount, and between the photosensitive device array and the circuit sub-mount. The conductive terminals are located between the interconnection layer and the circuit sub-mount to electrically connect the interconnection layer and the circuit sub-mount. The heat dissipation structure is located under the interconnection layer, and the heat dissipation structure and the photosensitive device array are respectively located at two opposite sides of the interconnection layer.

Encapsulation of backside illumination photosensitive device

A light-emitting module includes a substrate having a first surface and a second surface, at least one light-emitting device disposed on the first surface of the substrate, and an optical reflection layer disposed on the first surface of the substrate and surrounding the light-emitting device for receiving a portion of light emitted from the light-emitting device and reflecting the portion of light. The substrate can be rigid or flexible.

Light-emitting module

A substrate-free light emitting diode (LED) including an epitaxy layer, a conductive supporting layer, and a first contact pad is provided. The epitaxy layer includes a first type doped semiconductor layer, a light emitting layer, and a second type doped semiconductor layer. The light emitting layer is disposed on the first type doped semiconductor layer, and a portion of the first type doped semiconductor layer is exposed. The second type doped semiconductor layer and the conductive supporting layer are sequentially disposed on the second type doped semiconductor layer. The first contact pad is disposed on the exposed first type doped semiconductor layer and electrically connected thereto. The first contact pad and the conductive supporting layer serving as an electrode are disposed on the same side of the epitaxy layer to avoid the light shielding effects of the electrode to improve the front light emitting efficiency of the LED.

Substrate-free light emitting diode

A flexible light source device including a substrate, a light emitting device, a molding compound, a dielectric layer, and a metal line is provided. The substrate has a first surface, a second surface opposite to the first surface, and a first opening. The light emitting device is disposed on the first surface of the substrate and covers the first opening. The molding compound is located above the first surface and covers the light emitting device. The dielectric layer is disposed on the second surface and covers a sidewall of the first opening. The dielectric layer has a second opening which exposes part of the light emitting device. The metal line is disposed on the dielectric layer, wherein the metal line is electrically connected to the light emitting device via the second opening in the dielectric layer. Additionally, a fabrication method of the flexible light source device is also provided.

Growing community of inventors

Changhua County, Taiwan

Zhi-Cheng Hsiao