Company Filing History:
2 out of 8,684 
1 out of 1 Years Active: 1982-1993
Title: Muren Chu: Innovator in Infrared Detector Technology
Introduction
Muren Chu is a notable inventor based in Thousand Oaks, CA (US). He has made significant contributions to the field of infrared detector technology, holding a total of 3 patents. His work focuses on advanced semiconductor materials and methods that enhance the performance of infrared detectors.
Latest Patents
Muren Chu's latest patents include a method of making an infrared detector using HgCdTe semiconductor material. This innovative method involves growing an n-type epitaxial layer on a substrate, followed by a graded p-type epitaxial layer. The p-type layer is designed to have a large bandgap region adjacent to the heterojunction, with a narrow bandgap region at the surface. The process includes etching the periphery of the p-type layer to expose the large bandgap material and forming a HgCdTe passivation layer. Additionally, a metal, such as indium, is applied to create good ohmic contact with the n-type layer.
Another significant patent involves a method for growing an epitaxial layer of CdTe on an epitaxial layer of HgCdTe by liquid phase epitaxy. This method utilizes a solution comprising Sn and Hg with a small amount of CdTe, with a typical composition of Sn:Hg:CdTe=36:5:0.15 parts by weight. The growth temperature is adjusted based on the amount of CdTe in the solution, typically around 520°C. This innovative approach has led to the demonstration of the first CdTe/HgCdTe heterojunction sensitive to approximately 2.8 µm at 77K.
Career Highlights
Throughout his career, Muren Chu has worked with esteemed organizations, including the U.S. Government as represented by the Secretary of the Army and Fermionics Corporation. His expertise in semiconductor technology has positioned him as a key player in the development of advanced infrared detection systems.
Collaborations
Muren has collaborated with notable colleagues, including Cheng-Chi Wang and Yet-Zen Liu, who have contributed to his research and development efforts in the field.
Conclusion
Muren Chu's innovative work in infrared detector technology and his contributions to semiconductor materials have established him as a prominent inventor in his field. His patents reflect a commitment to advancing technology and improving the performance of infrared detection