Company Filing History:
Years Active: 1985-1986
Title: Innovations of James J Rosenberg
Introduction
James J Rosenberg is a notable inventor based in the Bronx, NY. He has made significant contributions to the field of semiconductor technology, holding a total of 2 patents. His work primarily focuses on improving the functionality and efficiency of field-effect transistors (FETs).
Latest Patents
One of his latest patents is for a "Double heterojunction FET with ohmic semiconductor gate and controllable." This invention relates to an improved heterojunction FET, specifically directed to a device where the contact to the semiconductor gate is ohmic in character. The gate and channel regions of the FET have the same barrier height relative to an intervening third layer of semiconductor, which sandwiches the third layer of undoped semiconductor. The resulting symmetry of the structure provides a threshold voltage that lies normally near zero volts and is controllable upwardly or downwardly by adding an n or p type dopant to the undoped third layer or region.
Another significant patent is for a "Silicon source component for use in molecular beam epitaxial growth." This invention describes a quantity of silicon serving as a source of the element silicon for use in a molecular beam epitaxial growth apparatus. The silicon is in the form of a monocrystalline wafer with a plurality of electrically parallel filaments separated by slots that pass completely through the wafer. Each filament has a length dimension greater than the width and height dimensions, joined at a broad contact area at each filament end, where an electric current is passed through the filaments through the broad contact areas.
Career Highlights
James J Rosenberg is currently associated with the International Business Machines Corporation, commonly known as IBM. His work at IBM has allowed him to explore and develop innovative technologies that have a significant impact on the semiconductor industry.
Collaborations
Throughout his career, James has collaborated with notable colleagues, including Thomas N Jackson and Peter Daniel Kirchner. These collaborations have contributed to the advancement of technology in their respective fields.
Conclusion
James J Rosenberg's contributions to semiconductor technology through his patents and work at IBM highlight his role as an influential inventor. His innovative approaches continue to shape the future of electronic devices and systems.