Company Filing History:
2 out of 370 
2 out of 32 
Years Active: 1987-1995
Title: **Innovative Vision: The Journey of Inventor Chan-Long Shieh**
Introduction
Chan-Long Shieh, an accomplished inventor residing in Plainsboro, NJ, has made significant contributions to the field of semiconductor technology. With four patents to his name, Shieh has been at the forefront of innovations that enhance optical waveguide applications, particularly in semiconductor lasers. His work is characterized by a unique approach to altering refractive indices in semiconductor materials.
Latest Patents
Among Chan-Long Shieh's notable patents is a method for fabricating index-guided semiconductor lasers. This innovative technique involves altering a refractive index through a process that includes exposing a surface portion of a semiconductor body to plasma etching. Following this, Shieh's method involves coating part of the surface with an oxide layer and subsequently heat treating the semiconductor body. This dual approach enhances the efficiency and functionality of buried heterostructure lasers, marking a crucial advancement in the field.
Career Highlights
Throughout his career, Chan-Long Shieh has been associated with prominent organizations. He has worked at Siemens Corporate Research, Inc. and Siemens Corporate Research & Support, Inc., where he leveraged his skills to push the boundaries of semiconductor research and development. His tenure at these companies allowed him to refine his innovative ideas and translate them into patentable inventions that have practical applications in the tech industry.
Collaborations
Shieh has also collaborated with esteemed colleagues such as Joseph I. Mantz and Reinhard W. Engelmann. These partnerships have undoubtedly enriched his research and contributed to the advancements in semiconductor technology, fostering an environment of innovation and teamwork.
Conclusion
Chan-Long Shieh's journey as an inventor reflects a commitment to pushing technological boundaries and a dedication to the field of semiconductor research. His achievements, particularly in optical waveguides and semiconductor lasers, have made a significant impact on the industry. With an impressive portfolio of patents, Shieh continues to inspire future generations of inventors and researchers in the pursuit of innovation.