Alfred Urquhart MacRae

Title: Alfred Urquhart MacRae: A Pioneer in Solid-State Technology

Introduction

Alfred Urquhart MacRae, based in Berkeley Heights, NJ, has made significant contributions to the field of solid-state technology. With two patents to his name, MacRae's work primarily focuses on high voltage switches and innovative methods for metallization in integrated circuits.

Latest Patents

MacRae's most recent patent, titled "High Voltage Dielectrically Isolated Dual Gate Solid-State Switch," showcases his expertise in semiconductor technology. This invention involves a high voltage solid-state switch that offers bidirectional blocking capabilities. It consists of a p-type semiconductor body with a major surface, separated by a dielectric layer from a semiconductor substrate. The design includes p+ and n+ type regions for the anode and cathode, respectively, along with a unique gate region, allowing the switch to transition between 'ON' and 'OFF' states efficiently.

Another patent, "Method for Making Patterned Platinum Metallization," provides a novel approach to creating precisely patterned platinum films essential for integrated circuit devices. This method enhances the manufacturing process by using a specific platinum compound and thermal reduction to achieve the desired metallic pattern.

Career Highlights

Throughout his career, MacRae has been associated with prestigious organizations such as Bell Telephone Laboratories and AT&T Bell Laboratories. His work at these institutions has laid the groundwork for advancements in semiconductor technology and integrated circuit manufacturing.

Collaborations

MacRae has worked alongside renowned colleagues, including David B. Fraser and Adrian R. Hartman. Their collective efforts have contributed to significant innovations in the field, further establishing their reputations as leaders in technology development.

Conclusion

Alfred Urquhart MacRae's inventions reflect a significant leap in solid-state technology, particularly through his patented works. His contributions to the industry not only demonstrate his innovative spirit but also support a collaborative effort that pushes the boundaries of modern technology. As he continues to influence the field, MacRae remains a notable figure in the legacy of electrical engineering and semiconductor advancements.