Kuo-Hsiung Chang

Title: Kuo-Hsiung Chang: Innovator in Light Emitting Diode Technology

Introduction

Kuo-Hsiung Chang is a prominent inventor based in Tao-Yuan Hsien, Taiwan. He has made significant contributions to the field of light emitting diodes (LEDs), holding two patents that showcase his innovative methods in manufacturing LED technology. His work has implications for various applications in lighting and display technologies.

Latest Patents

Chang's latest patents include a "Light emitting diode with a metal-coated reflective permanent substrate and the method for manufacturing the same." This patent describes a method of manufacturing an LED that involves growing a light emitting region on a temporary substrate, bonding it to a metal-coated reflective permanent substrate, and subsequently removing the temporary substrate. The reflective metal layer serves as a bonding agent, and the process utilizes a wafer bonding tool that applies pressure during heating to enhance the bonding of the permanent substrate.

Another notable patent is the "Light emitting diode with a permanent substrate of transparent glass or quartz and the method for manufacturing the same." This invention outlines a method where a transparent substrate of glass or quartz is bonded to the light emitting region, using a metal bonding agent that also functions as an ohmic contact layer. Similar to his previous patent, this method also involves heating the dual substrate LED element in a specialized wafer holding device to ensure effective bonding.

Career Highlights

Kuo-Hsiung Chang is associated with Visual Photonics Epitaxy Co., Ltd., where he continues to advance LED technology. His innovative approaches have positioned him as a key figure in the development of efficient and effective LED manufacturing processes.

Collaborations

Chang has collaborated with notable coworkers, including Kun-Chuan Lin and Ray-Hua Horng, contributing to the advancement of LED technologies through teamwork and shared expertise.

Conclusion

Kuo-Hsiung Chang's contributions to LED technology through his innovative patents reflect his commitment to advancing the field. His work not only enhances the efficiency of LED manufacturing but also paves the way for future developments in lighting and display technologies.