Chia-hung Chang

Title: Chia-hung Chang: Innovator in Multi-junction Light-emitting Diodes

Introduction

Chia-hung Chang is a prominent inventor based in Fujian, China. He has made significant contributions to the field of optoelectronics, particularly in the development of advanced light-emitting diodes (LEDs). His innovative work has led to the filing of a patent that showcases his expertise and creativity in this area.

Latest Patents

Chia-hung Chang holds a patent for a multi-junction light-emitting diode and the method for making the same. This multi-junction LED comprises a first epitaxial structure, a second epitaxial structure, and a tunnel junction structure positioned between them. The tunnel junction structure features a highly doped p-type semiconductor layer of InAlGaAs, along with a composition graded layer of AlGaAs and a highly doped n-type semiconductor layer of GaInP. This innovative design enhances the efficiency and performance of light-emitting diodes.

Career Highlights

Chia-hung Chang is associated with Tianjin Sanan Optoelectronics Co., Ltd., where he continues to push the boundaries of LED technology. His work has not only contributed to the advancement of optoelectronic devices but has also positioned his company as a leader in the industry.

Collaborations

Chia-hung Chang has collaborated with notable colleagues such as Chihhung Hsiao and Yu-Ren Peng. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas.

Conclusion

Chia-hung Chang's contributions to the field of multi-junction light-emitting diodes exemplify his dedication to innovation in optoelectronics. His patent and ongoing work at Tianjin Sanan Optoelectronics Co., Ltd. highlight his role as a key figure in advancing LED technology.