Hongjun Feng

Title: Innovations of Inventor Hongjun Feng

Introduction

Hongjun Feng is a notable inventor based in Windsor, CO (US). He has made significant contributions to the field of acoustic resonators, holding a total of 7 patents. His work focuses on enhancing the performance of acoustic devices through innovative designs and materials.

Latest Patents

Among his latest patents is an invention titled "Acoustic resonator performance enhancement using selective metal etch." This patent describes an acoustic resonator that comprises a substrate, a first electrode adjacent to the substrate, a layer of piezoelectric material adjacent to the first electrode, a second electrode adjacent to the layer of piezoelectric material, and a passivation layer adjacent to the layer of piezoelectric material. The passivation layer includes a recessed feature, and fill material is provided in this recessed feature. Another notable patent is "Acoustic resonator performance enhancement using selective metal etch and having a trench in the piezoelectric." This invention includes a substrate, a first electrode, a layer of piezoelectric material, and a second electrode. The substrate has a first surface, and the first electrode is adjacent to this surface. The layer of piezoelectric material is adjacent to the first electrode, while the second electrode lies in a first plane and has an edge. The layer of piezoelectric material features a recessed area adjacent to the edge of the second electrode.

Career Highlights

Hongjun Feng has worked with prominent companies in the technology sector, including Avago Technologies Wireless IP (Singapore) Pte. Ltd. and Avago Technologies General IP (Singapore) Pte. Ltd. His experience in these organizations has contributed to his expertise in developing advanced acoustic resonator technologies.

Collaborations

Throughout his career, Hongjun has collaborated with notable professionals in the field, including Richard C Ruby and Paul D Bradley. These collaborations have further enriched his work and innovations in acoustic resonator technology.

Conclusion

Hongjun Feng's contributions to the field of acoustic resonators demonstrate his innovative spirit and technical expertise. His patents reflect a commitment to enhancing device performance through thoughtful design and engineering.