Company Filing History:
Years Active: 1977-1998
Title: Freeman D. Shepherd: Innovator in Infrared Detection Technology
Introduction
Freeman D. Shepherd is a notable inventor based in Chelmsford, MA (US), recognized for his contributions to the field of infrared detection technology. With a total of five patents to his name, Shepherd has made significant advancements that enhance the performance of infrared detector arrays.
Latest Patents
Among his latest patents is the "Schottky barrier infrared detector array with increased effective fill." This invention improves the design of Schottky barrier infrared detector (SBIR) arrays by modifying the detector unit cell design to maximize the fraction of detector electrode area that exhibits full spectral emission response. The recommended changes in the impurity density profile, or 'doping,' under the Schottky electrode can lead to a two-fold increase in the photoemission of SBIR arrays, particularly those with small detector cell dimensions. Another significant patent is the "Buried junction enhanced Schottky barrier device," which features a completely submerged Schottky barrier junction to enhance the collection efficiency of photogenerated carriers. This patent also discloses a method for manufacturing the device.
Career Highlights
Freeman D. Shepherd works for the United States of America as represented by the Secretary of the Air Force. His work focuses on advancing technologies that improve infrared detection capabilities, which are crucial for various applications in defense and research.
Collaborations
Shepherd has collaborated with notable individuals in his field, including Sven A. Roosild and Paul W. Pellegrini. Their combined expertise has contributed to the development of innovative solutions in infrared technology.
Conclusion
Freeman D. Shepherd's work in the field of infrared detection technology showcases his innovative spirit and dedication to advancing scientific knowledge. His patents reflect a commitment to improving the efficiency and effectiveness of infrared detection systems.