Company Filing History:
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1 out of 373 
Years Active: 2016-2023
Title: Catriona Marie O'Sullivan: Innovator in Bipolar Junction Transistors
Introduction
Catriona Marie O'Sullivan is a prominent inventor based in Kilcornan, Ireland. She has made significant contributions to the field of electronics, particularly in the development of bipolar junction transistors. With a total of four patents to her name, her work has advanced the understanding and functionality of these essential components in electronic devices.
Latest Patents
O'Sullivan's latest patents include innovative methods for forming emitters and collectors for bipolar junction transistors. One of her notable inventions is a bipolar junction transistor that features an emitter structure positioned above the upper surface of the base region. This design optimizes the gain for specific types of transistors by carefully configuring the thickness of the emitter and the interfacial oxide. Additionally, she has developed a method for fabricating both PNP and NPN transistors on the same substrate, allowing for separate definitions of the emitter structures for each type. Her work on multilayer collector structures further enhances the control over dopant concentration profiles, optimizing the speed and breakdown voltage of bipolar junction transistors.
Career Highlights
Throughout her career, Catriona has worked with notable companies such as Analog Devices International Unlimited Company and Analog Devices Global. Her experience in these organizations has allowed her to collaborate on cutting-edge technologies and contribute to advancements in the semiconductor industry.
Collaborations
Catriona has collaborated with talented individuals in her field, including Shane Patrick Geary and Edward John Coyne. These partnerships have fostered innovation and have been instrumental in her research and development efforts.
Conclusion
Catriona Marie O'Sullivan's contributions to the field of bipolar junction transistors exemplify her dedication to innovation and excellence in electronics. Her patents reflect a deep understanding of semiconductor technology and a commitment to advancing the industry.