Location History:
- Newark, CA (US) (2004 - 2019)
- Los Altos, CA (US) (2021)
Company Filing History:
4 out of 1,813 
4 out of 4,667 
2 out of 896 
Years Active: 2004-2021
Title: David A Feld: Innovator in Bulk Acoustic Wave Resonators
Introduction
David A Feld is a prominent inventor based in Newark, CA (US), known for his significant contributions to the field of bulk acoustic wave (BAW) resonators. With a total of 11 patents to his name, Feld has made remarkable advancements in acoustic technology that have implications across various industries.
Latest Patents
Feld's latest patents include innovative designs for BAW resonators. One notable patent describes a BAW resonator featuring openings in an active area and a pillar beneath the opening. This design includes a lower electrode, a piezoelectric layer, and an upper electrode, with an opening that extends completely through the upper electrode. The resonator also incorporates a substrate below the lower electrode, a cavity, and a pillar that contacts a portion of the lower electrode beneath the opening. The pillar's area is less than that of the opening, ensuring no electrical connections extend across the opening.
Another significant patent involves an acoustic resonator with an extended cavity. This BAW resonator features a nonlinear substrate defining a cavity and an acoustic stack over the cavity. The stack includes a bottom electrode, a piezoelectric layer, and a top electrode. The design allows for an E-field generated in the resonator to effectively excite the acoustic stack, enhancing its performance.
Career Highlights
Throughout his career, David A Feld has worked with several notable companies, including Avago Technologies, General IP (Singapore) Pte. Ltd., and Agilent Technologies, Inc. His experience in these organizations has contributed to his expertise in developing advanced acoustic technologies.
Collaborations
Feld has collaborated with esteemed colleagues such as Paul D Bradley and Tiberiu Jamneala, further enriching his work in the field of acoustic resonators.
Conclusion
David A Feld's innovative work in bulk acoustic wave resonators has positioned him as a key figure in the field of acoustic technology. His patents reflect a commitment to advancing the capabilities of resonators, making significant contributions to the industry.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.