Company Filing History:
Years Active: 1992-1993
Title: Innovations of S Visvanathan Krishnaswamy
Introduction
S Visvanathan Krishnaswamy is an accomplished inventor based in Monroeville, PA (US). He has made significant contributions to the field of acoustic resonators, holding a total of 3 patents. His work focuses on enhancing the performance and manufacturability of devices used in high-frequency applications.
Latest Patents
One of his latest patents is for a Lateral Field Film Bulk Acoustic Resonator (LF-FBAR). This invention features a design where all electrodes are located on one surface of the piezoelectric material. This configuration simplifies manufacturing and improves performance. The gap between electrodes is limited to a specified dimension to maximize device efficiency. Both single and multi-pole devices are described, with barium magnesium fluoride and lithium niobate specified as the piezoelectric materials for high-frequency applications.
Another notable patent is for a Microwave Film Bulk Acoustic Resonator and Manifolded Filter Bank. This invention is configured as a coplanar transmission line structure. A film resonator is formed over an opening in a substrate and is connected to associated circuitry by one or more transmission lines formed on the substrate. The coplanar ground plane provides a simple mechanism for establishing a true ground connection to the resonator without the need for vias passing through the substrate. This design eliminates the need for wirebonds, simplifying fabrication and facilitating operation at microwave frequencies.
Career Highlights
S Visvanathan Krishnaswamy is currently employed at Westinghouse Electric Corporation, where he continues to innovate in the field of acoustic resonators. His work has significantly impacted the development of high-frequency devices, making them more efficient and easier to manufacture.
Collaborations
He has collaborated with notable coworkers, including Donald R Lampe and Samar Sinharoy, contributing to advancements in their respective fields.
Conclusion
S Visvanathan Krishnaswamy's contributions to the field of acoustic resonators demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of the complexities involved in high-frequency applications, paving the way for future advancements in technology.