Philip W Foy

Title: The Innovations of Philip W. Foy

Introduction

Philip W. Foy is a notable inventor based in Plainfield, NJ (US). He has made significant contributions to the field of semiconductor technology, particularly in the fabrication of Gallium Arsenide (GaAs) devices. With a total of 2 patents to his name, Foy's work has had a lasting impact on the industry.

Latest Patents

Foy's latest patents focus on methods of fabricating GaAs devices utilizing a semi-insulating layer. One of his key innovations involves reducing surface recombination current in GaAs devices through a semi-insulating, oxygen, iron, or chromium doped monocrystalline layer of AlGaAs grown by Molecular Beam Epitaxy (MBE). This AlGaAs layer is strategically grown on a GaAs body and subsequently masked. The diffusion of suitable impurities through a window in the mask converts the exposed portions of the AlGaAs layer to low resistivity, thereby modifying the conductivity of the underlying zone of the GaAs body. The peripheral portions of the AlGaAs layer remain semi-insulating, effectively reducing the surface recombination velocity-diffusion length product by more than an order of magnitude.

Career Highlights

Foy has had a distinguished career at Bell Telephone Laboratories, where he has been instrumental in advancing semiconductor technologies. His innovative approaches have contributed to the development of more efficient electronic devices.

Collaborations

Throughout his career, Foy has collaborated with esteemed colleagues such as Horace C. Casey, Jr. and Alfred Yi Cho. These collaborations have further enriched his work and expanded the impact of his inventions.

Conclusion

Philip W. Foy's contributions to the field of semiconductor technology are noteworthy. His innovative patents and collaborations have significantly advanced the capabilities of GaAs devices. His work continues to influence the industry and inspire future innovations.