This inventor holds 1 USPTO granted patent. Top assignee: National Central University. Active years: 2016.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2016
Title: Innovations of Chih-Yi Hsieh in Light-Emitting Diode Technology
Introduction
Chih-Yi Hsieh is a notable inventor based in Taipei, Taiwan. He has made significant contributions to the field of light-emitting diodes (LEDs), particularly through his innovative patent that enhances the efficiency and functionality of LED structures.
Latest Patents
Chih-Yi Hsieh holds a patent for a "Light-emitting diode structure having progressive work function layer." This invention relates to an LED structure that incorporates a progressive work function layer. The design utilizes a conversion layer with a gradually varying work function to form an Ohmic contact between the p-type GaN and the metal reflection layer. The unique aspect of this invention is that the work function of the conversion layer is not a single value. Instead, different quantities of dopants are introduced at varying depths within the conversion layer. This allows for an excellent match between the p-type GaN and the metal reflection layer. The high light transmissivity of the conversion layer material minimizes the absorption of light by the Ohmic contact layer. Additionally, this conversion layer serves as both an Ohmic contact layer and a barrier layer, effectively blocking the diffusion of metal into the p-type GaN.
Career Highlights
Chih-Yi Hsieh is affiliated with National Central University, where he continues to advance research in LED technology. His work has garnered attention for its potential applications in various lighting and display technologies.
Collaborations
Chih-Yi Hsieh has collaborated with notable colleagues, including Cheng-Yi Liu and Yen-Shou Liu, contributing to the advancement of research in the field of LEDs.
Conclusion
Chih-Yi Hsieh's innovative work in LED technology, particularly through his patent on the progressive work function layer, showcases his commitment to enhancing the efficiency and performance of light-emitting diodes. His contributions are significant in the ongoing development of advanced lighting solutions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile