This inventor holds 6 USPTO granted patents and 1 published patent application. Top assignee: Epistar Corporation. Active years: 2018-2024.
Company Filing History:
Years Active: 2018-2024
Title: Innovations of Tao-Chi Chang
Introduction
Tao-Chi Chang is a prominent inventor based in Hsinchu, Taiwan. He has made significant contributions to the field of light-emitting devices, holding a total of six patents. His work has been instrumental in advancing technology in this area.
Latest Patents
One of his latest patents is for a light-emitting device and its manufacturing method. This device includes a substrate with a top surface that comprises a first portion and a second portion. A first semiconductor stack is placed on the first portion, which includes a first upper surface and a first side wall. Additionally, a second semiconductor stack is positioned on the first upper surface, featuring a second upper surface and a second side wall. The second side wall connects to the first upper surface. The first semiconductor stack contains a dislocation stop layer made of AlGaN. Notably, the first side wall and the second portion of the top surface form an acute angle α.
Career Highlights
Tao-Chi Chang is currently employed at Epistar Corporation, where he continues to innovate in the field of light-emitting technology. His expertise and dedication have led to the development of advanced devices that enhance performance and efficiency.
Collaborations
He has collaborated with notable coworkers, including Yen-Tai Chao and Sen-Jung Hsu, contributing to various projects and innovations within the company.
Conclusion
Tao-Chi Chang's work in light-emitting devices showcases his innovative spirit and commitment to advancing technology. His patents reflect a deep understanding of semiconductor technology and its applications.