Thomas Macelwee

Title: Thomas Macelwee: Innovator in Semiconductor Technology

Introduction

Thomas Macelwee is a notable inventor based in Nepean, Canada. He has made significant contributions to the field of semiconductor technology, holding a total of 9 patents. His work focuses on improving the performance and reliability of semiconductor devices through innovative materials and methods.

Latest Patents

One of Macelwee's latest patents is titled "High quality gate dielectric for semiconductor devices and method of formation thereof." This invention provides improved high-quality gate dielectrics and methods for preparing such dielectrics. The preferred dielectrics include rare earth doped materials, such as silicon dioxide or silicon oxynitride. Notably, cerium doped silicon dioxide exhibits an unexpectedly high charge-to-breakdown Q, which is believed to be due to the conversion of excess hot electron energy into photons. This innovation reduces harmful hot electron effects, making it particularly useful for gate dielectrics in semiconductor devices like floating gate MOSFETs used in flash memories.

Another significant patent is "Light emitting device structure and process for fabrication thereof." This invention describes a light emitting device structure where the emitter layer comprises one or more device wells defined by thick field oxide regions. The method of fabrication allows for reduced topography in emitter layer structures, enhancing processing and layer-to-layer uniformity. This technology is especially applicable to multilayer emitter structures, which can be used in solid-state lighting applications, providing improved process flexibility and reliability.

Career Highlights

Throughout his career, Thomas Macelwee has worked with prominent organizations, including Group IV Semiconductor, Inc. and McMaster University. His experience in these institutions has allowed him to develop and refine his innovative ideas in semiconductor technology.

Collaborations

Macelwee has collaborated with notable colleagues such as George Chik and Iain D Calder. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.

Conclusion

Thomas Macelwee is a distinguished inventor whose work in semiconductor technology has led to significant advancements in the field. His innovative patents and collaborations reflect his commitment to enhancing the performance and reliability of semiconductor devices.