Company Filing History:
Years Active: 2019
Title: The Innovative Work of Naser Alijabbari
Introduction
Naser Alijabbari is a notable inventor based in Elkridge, Maryland, renowned for his contributions to the field of semiconductor technology. With a total of two patents, his innovative work primarily focuses on advanced frequency multiplication techniques and diode architectures.
Latest Patents
Naser Alijabbari's most recent patent, titled "Balanced Unilateral Frequency Quadrupler," presents an integrated frequency quadruplet that utilizes a pair of balanced frequency doublers driven in phase quadrature through a hybrid coupler. This inventive approach results in a ‘unilateral’ multiplier, effectively presenting a match to the input-driving source regardless of the impedance of the doubler stages. Significant for its application, this architecture implements an integrated frequency quadruplet with an output frequency of 160 GHz. The development employs quasi-vertical GaAs varactors fabricated on thin silicon support membranes, aiming to address degradation issues often caused by impedance mismatches between multiplier stages. A unique quasi-vertical diode process has been utilized to produce an integrated drop-in chip module incorporating 18 varactors, matching networks, and beamleads for mounting, tailored to fit a multiplier waveguide housing, ensuring high reproducibility and consistent performance.
Another prominent patent is "Quasi-Vertical Diode with Integrated Ohmic Contact Base and Related Method Thereof." This invention describes a quasi-vertical Schottky diode architecture characterized by a topside anode contact that connects to external circuitry through an airbridge finger. It involves a thin mesa of semiconductor material with epilayers, including a highly-doped bottomside layer and an ohmic contact placed directly beneath the anode. The fabrication method involves several steps, including the initial etching of the semiconductor wafer, deposition of metals, and thermal bonding processes, concluding with the formation of diode mesas to isolate the devices on the host substrate.
Career Highlights
Naser Alijabbari works at the University of Virginia Patent Foundation, where he continues to develop innovative technologies and contribute to research in semiconductor applications. His expertise and research efforts have significantly advanced understanding in his field, setting a foundation for further technological advancements.
Collaborations
Throughout his career, Naser has collaborated with esteemed colleagues such as Robert M. Weikle II and Matthew Bauwens. These collaborations have been pivotal in enhancing research outputs and pushing the boundaries of invention in the semiconductor domain.
Conclusion
Naser Alijabbari stands out as a prominent inventor whose work in frequency multiplication and diode technology has significant implications for future advancements in the semiconductor industry. His patents reflect a deep commitment to innovation, underscoring his role in shaping modern technological solutions. The integration of his inventions into practical applications will undoubtedly influence the landscape of telecommunications and other related fields.