James D MacDonald

Title: Innovations of James D MacDonald

Introduction

James D MacDonald is a notable inventor based in Rockwall, TX (US). He has made significant contributions to the field of micro-mechanical resonators, holding a total of 6 patents. His work focuses on methods that enhance the performance and functionality of these resonators.

Latest Patents

One of his latest patents is a method and apparatus for frequency tuning of a micro-mechanical resonator. This innovative method involves modifying the resonance frequency of a micro-mechanical resonator by directing electromagnetic energy to it through a transparent portion of its package. The process allows for the removal of mass, which predictably affects the resonance frequency. In some embodiments, the energy is sourced from a femtosecond laser. The amount of mass to be removed is determined based on its location on the resonator. A mass-trimming map is developed to identify potential mass-trimming sites, which can be classified as fine-tuning or coarse-tuning sites. The selection of actual sites for mass removal is based on the differential between the measured and desired resonance frequency.

Career Highlights

Throughout his career, James D MacDonald has worked with several prominent companies, including Ericsson GmbH and Discera, Inc. His experience in these organizations has contributed to his expertise in the field of micro-mechanical resonators.

Collaborations

James has collaborated with notable individuals such as Xiangxiang Huang and Wan-Thai Hsu, further enhancing his innovative work in the industry.

Conclusion

James D MacDonald is a distinguished inventor whose contributions to micro-mechanical resonators have advanced the field significantly. His innovative methods and collaborative efforts continue to influence the industry.