Chang-Han Chiang

Title: Chang-Han Chiang: Innovator in Light Emitting Diode Technology

Introduction

Chang-Han Chiang is a prominent inventor based in Hsinchu, Taiwan. He has made significant contributions to the field of light emitting diodes (LEDs), holding a total of four patents. His innovative work focuses on enhancing the efficiency and effectiveness of LED technology.

Latest Patents

Chang-Han Chiang's latest patents include a light emitting diode and its fabricating method. This invention discloses a light emitting diode epitaxy structure formed on a substrate, which is then etched to create a recess filled with a transparent dielectric material. An adhesive layer is used to adhere a conductive substrate to the light emitting diode epitaxy structure, followed by the removal of the substrate. Another notable patent is the high light-extraction efficiency LED structure. This invention features metallic pads and metallic mesh wires made of an aluminum-silver alloy, which enhances light reflection and minimizes light loss, thereby increasing light-extraction efficiency.

Career Highlights

Throughout his career, Chang-Han Chiang has worked with notable companies such as Epistar Corporation and High Power Opto, Inc. His experience in these organizations has allowed him to refine his skills and contribute to advancements in LED technology.

Collaborations

Chang-Han Chiang has collaborated with esteemed colleagues, including Chih-Sung Chang and Tzong-Liang Tsai. These partnerships have fostered innovation and development in the field of light emitting diodes.

Conclusion

Chang-Han Chiang is a distinguished inventor whose work in LED technology has led to significant advancements in the industry. His patents reflect a commitment to improving light extraction efficiency and fabrication methods, making him a key figure in the field of innovations.