Company Filing History:
Years Active: 1991
Title: James E. McIntyre: Innovator in Thyristor Technology
Introduction
James E. McIntyre was a notable inventor known for his contributions to the field of electrical engineering. He was based in Crum Lynn, PA (US) and held a patent for a significant innovation in thyristor technology. His work has had a lasting impact on the industry, particularly in the development of high current gate turn-off thyristors.
Latest Patents
McIntyre's most recognized patent is for a high current gate turn-off thyristor. This GTO thyristor features a cathode layer divided into numerous cathode-layer fingers, with a gate layer contiguous with these fingers. A PN junction J1 is established between each finger and the gate layer. Each finger is equipped with a cathode electrode, while the gate layer has a gate electrode that surrounds the fingers in a spaced arrangement. The turn-off process of the GTO thyristor is achieved by directing a turn-off current between the cathode electrode of each finger and the gate electrode through the associated PN junction J1. Notably, the centrally-located region of this PN junction is characterized by an avalanche voltage that is significantly lower than that of the surrounding region, enhancing the current turn-off capabilities of the GTO thyristor.
Career Highlights
Throughout his career, McIntyre worked at General Electric Company, where he made significant advancements in electrical components. His innovative designs and patents contributed to the evolution of power electronics, particularly in the area of thyristors.
Collaborations
McIntyre collaborated with several notable colleagues, including Dante E. Piccone and Leroy B. Major. Their teamwork and shared expertise helped to further the development of advanced electrical technologies.
Conclusion
James E. McIntyre's contributions to the field of electrical engineering, particularly through his patent for the high current gate turn-off thyristor, have left a lasting legacy. His work continues to influence the industry and inspire future innovations in power electronics.