Catherine A Johnsen

Title: Catherine A Johnsen: Innovator in Surface Acoustic Wave Technology

Introduction

Catherine A Johnsen is a notable inventor based in Santa Rosa, CA. She has made significant contributions to the field of surface acoustic wave (SAW) devices. Her innovative work has led to the development of a patented technology that enhances the performance of these devices.

Latest Patents

Catherine holds a patent for a "Polyimide damper for surface acoustic wave device." This invention includes a piezoelectric substrate with an input transducer that launches acoustic surface waves along a propagation path. An output transducer receives these waves, and the device features an area of acoustic energy absorbing material, preferably polyimide, which is strategically placed on the substrate. The acoustic absorber is patterned using photolithographic processing techniques while the device is still in wafer form. This innovation aims to improve the efficiency and functionality of SAW devices.

Career Highlights

Catherine has worked at Hewlett-Packard Company, where she has been able to apply her expertise in acoustic wave technology. Her work has not only contributed to the company's advancements but has also positioned her as a key figure in the field of electronics and materials science.

Collaborations

Catherine has collaborated with notable colleagues, including Robert C Bray and Timothy L Bagwell. These partnerships have fostered a creative environment that has led to further innovations in the technology sector.

Conclusion

Catherine A Johnsen's contributions to surface acoustic wave technology exemplify her innovative spirit and dedication to advancing electronic devices. Her patent and work at Hewlett-Packard Company highlight her role as a significant inventor in this field.