Company Filing History:
Years Active: 2006
Title: The Innovations of Michael Y Cheng
Introduction
Michael Y Cheng is a notable inventor based in Thousand Oaks, California. He has made significant contributions to the field of optoelectronics, particularly in the development of vertical-cavity surface-emitting lasers (VCSELs). His work has led to advancements that enhance the performance and reliability of these devices.
Latest Patents
Cheng holds a patent for an "Index guided VCSEL and method of fabrication." This innovative design features a reliable high-frequency VCSEL that includes a lower distributed Bragg reflector (DBR), an active region, and an upper DBR. The patent describes a process where a cylindrical volume is etched from the upper DBR to define a mesa, with the lower surface of the cylindrical volume forming an angle greater than ninety degrees with the side wall of the mesa. An isolation trench is also etched in the lower surface of the cylindrical volume, which is concentric with the mesa and extends through the active region. Additionally, a portion of the side wall of the mesa and the lower surface of the cylindrical volume are proton implanted. The upper DBR is then planarized using low-k dielectric materials, and n and p electrical contacts are coupled to opposite sides of the active region to supply operating current.
Career Highlights
Cheng is currently employed at JDS Uniphase Corporation, where he continues to work on cutting-edge technologies in the field of optoelectronics. His expertise and innovative approach have made him a valuable asset to the company.
Collaborations
Cheng collaborates with fellow inventor Wenbin Jiang, contributing to advancements in their shared field of research.
Conclusion
Michael Y Cheng's contributions to the field of optoelectronics, particularly through his patent on VCSEL technology, highlight his role as an influential inventor. His work continues to impact the industry positively.