Joseph Doll

Title: Joseph Doll - Innovator in MEMS Audio Devices

Introduction

Joseph Doll is a notable inventor based in Bend, Oregon. He has made significant contributions to the field of micro-electromechanical systems (MEMS), particularly in audio devices. His innovative work has led to the development of a unique patent that enhances the functionality of integrated micro-speakers and microphones.

Latest Patents

Joseph Doll holds a patent for a "Foundry-compatible through silicon via process for integrated micro-speaker and microphone." This MEMS audio device features a first wafer with a top that includes a first cavity and a bottom with a vent hole. The design incorporates a second wafer with a flexible material layer above the first cavity, and a third wafer with physical contacts coupled to the second wafer. The third wafer also contains a second cavity above the flexible material layer, while a wiring wafer below the first wafer has a second vent hole. This innovative structure allows the flexible material layer to function as a diaphragm for the MEMS audio device.

Career Highlights

Joseph Doll is currently associated with Vibrant Microsystems Inc., where he continues to push the boundaries of audio technology. His work in the company has been instrumental in advancing MEMS audio devices, making them more efficient and effective for various applications.

Collaborations

Due to space constraints, the collaborations section will be omitted.

Conclusion

Joseph Doll's contributions to the field of MEMS audio devices exemplify his innovative spirit and dedication to advancing technology. His patent reflects a significant step forward in the integration of audio components, showcasing his expertise and vision in the industry.