Sandra J Deneault

Title: The Innovative Contributions of Sandra J. Deneault

Introduction

Sandra J. Deneault is a prominent inventor based in Waltham, MA, known for her significant contributions to the field of surface-emission cathodes. With a patent to her name, she has made strides in advancing technology that can potentially revolutionize lighting and display systems.

Latest Patents

Deneault's notable patent, titled "Surface-emission cathodes having cantilevered electrodes," describes a unique surface-emission cathode formed on an insulating surface featuring cantilevered, or 'undercut,' electrodes. The patent indicates that suitable insulating surfaces include negative electron affinity (NEA) insulators such as glass or diamond. This cathode is designed to function in a range of conditions, operating effectively in compromised vacuum environments, such as 10 Torr, without the need for bias on the electrodes and within low vacuum electric fields (at least 10 V/cm). Moreover, the embodiments of this invention are cost-effective to fabricate, requiring lithographic resolution of around 10 micrometers. Notably, these cathodes can be utilized over extensive areas for applications in lighting, displays, and even in satellite technology, such as for use in tethers, thrusters, and space-charging neutralizers.

Career Highlights

Deneault is affiliated with the Massachusetts Institute of Technology, where she continues her research and innovation in materials technology. Her work is characterized by a commitment to developing practical, scalable solutions in her field.

Collaborations

Throughout her career, Deneault has engaged in collaborations with notable colleagues including Michael W. Geis and Theodore H. Fedynyshyn. Together, they have contributed to advancements in cathode technology, each bringing their expertise and enhancing the breadth of innovation in the project.

Conclusion

Sandra J. Deneault exemplifies the spirit of innovation present in contemporary research institutions. Her patents reflect a deep understanding of materials science and engineering, pointing to a future where her inventions may play a critical role in the technological landscape, particularly in space applications and energy-efficient lighting solutions.