Ralph N Wall

Title: Ralph N Wall: Innovator in Acoustic Wave Technology

Introduction

Ralph N Wall is a prominent inventor based in Beaverton, Oregon, known for his significant contributions to the field of acoustic wave technology. With a total of 11 patents to his name, Wall has made remarkable advancements that enhance the performance of bulk acoustic wave (BAW) resonators and filters.

Latest Patents

One of Wall's latest patents focuses on optimal acoustic impedance materials for polished substrate coating to suppress passband ripple in BAW resonators and filters. This innovation involves constructing a BAW resonator designed to reduce phase and amplitude ripples in frequency response. The resonator is fabricated on a substrate that is 400 micrometers thick or less, with a polished second side featuring minimal roughness. Additionally, a Bragg mirror is created using alternating layers of high and low acoustic impedance materials. Another notable patent details a method to control the BAW resonator top electrode edge during patterning, which includes a series of precise fabrication steps to ensure the integrity of the resonator's design.

Career Highlights

Throughout his career, Ralph N Wall has worked with several notable companies, including Maxim Integrated Products, Inc. and Triquint Semiconductor Corporation. His experience in these organizations has allowed him to refine his skills and contribute to cutting-edge technologies in the field.

Collaborations

Wall has collaborated with esteemed colleagues such as Guillaume Bouche and Edward Martin Godshalk, further enhancing his innovative work in acoustic wave technology.

Conclusion

Ralph N Wall's contributions to the field of acoustic wave technology through his patents and collaborations highlight his role as a leading inventor. His work continues to influence advancements in resonator and filter technologies, showcasing the importance of innovation in this area.