Company Filing History:
5 out of 2,886 
1 out of 874 
1 out of 1 Years Active: 1983-2013
Title: Lester F. Eastman - A Pioneer in Semiconductor Innovations
Introduction
Lester F. Eastman, based in Ithaca, NY, is a prominent inventor with a remarkable portfolio of eight patents. His work, particularly in the field of semiconductor devices, has significantly contributed to advancements in high-performance electronics.
Latest Patents
Among his notable recent inventions are two innovative patents. The first is a high-performance power switch, which involves a novel AlGaN/GaN metal-insulator-semiconductor heterostructure field-effect transistor (MISHFET). This device, utilizing HfO2 for surface passivation and gate insulator, showcases greatly reduced gate and drain leakage currents. Demonstrating an off-state breakdown voltage of 1035V with only 0.9 mΩ-cm² specific on-resistance, this technology marks a significant achievement in GaN-based power-switching devices. Additionally, there is no observed current slump from pulse measurements, enhancing its reliability and efficiency.
The second patent pertains to a field-effect semiconductor device featuring a dipole barrier. This design includes a substrate and dipole barrier that creates a potential well, aiding in electron confinement within the channel layer. This innovation highlights Eastman's commitment to pushing the boundaries of semiconductor technology.
Career Highlights
Lester Eastman has had a significant career, marking his influence through collaborations with prestigious companies. He has lent his expertise to the Cornell Research Foundation Inc. and Welch Allyn, Inc. His sustained work in these organizations showcases his dedication to both research and practical applications in semiconductors.
Collaborations
Throughout his career, Eastman has worked alongside esteemed colleagues such as James R. Shealy and David G. Ankri. Their collaborative efforts have further fostered innovations in semiconductor technology, contributing to the advancement of numerous applications in the field.
Conclusion
Lester F. Eastman's contributions to semiconductor inventions exemplify his role as a visionary inventor. His latest patents reflect a deep understanding of material science and electrical engineering, reinforcing his status as an innovator. With continued focus on enhancing device performance, Eastman remains a pivotal figure in the realm of electronics and semiconductor technology.