Ronald E Negri

Title: The Innovative Contributions of Ronald E Negri

Introduction

Ronald E Negri is a notable inventor based in Minnetonka, MN (US). He has made significant contributions to the field of surface imaging and analysis through his innovative patents. With a total of 3 patents, Negri's work has advanced the understanding and application of charge neutralization methods in various technologies.

Latest Patents

Negri's latest patents include groundbreaking methods and systems that utilize pulsed dual-beam charge neutralization. One of his patents focuses on surface imaging apparatuses and surface analysis apparatuses. This invention is based on the detection of secondary electrons or secondary ions, which include a spatially scanned and DC or pulsed primary excitation source. This results in secondary electrons or secondary ions that are detected to provide a modulated signal for imaging the sample. Another significant patent involves dual polarity flood beams that effectively neutralize surface charge and surface potential variation. Additionally, he developed a sample holder apparatus designed to reduce the energy of electrons in an analyzer system. This apparatus includes an electrically isolated sample support member that connects to the sample and applies a retarding bias potential, thereby producing an electrical retarding field that reduces the energy of emitted particles before they enter an annular-acceptance analyzer.

Career Highlights

Throughout his career, Ronald E Negri has worked with prominent companies such as PerkinElmer Corporation and Physical Electronics USA, Inc. His experience in these organizations has allowed him to refine his skills and contribute to significant advancements in his field.

Collaborations

Negri has collaborated with notable individuals in his field, including Robert L Gerlach and David G Watson. These collaborations have further enriched his work and expanded the impact of his inventions.

Conclusion

Ronald E Negri's innovative contributions to surface imaging and analysis have established him as a significant figure in his field. His patents reflect a deep understanding of charge neutralization methods, and his collaborations have enhanced the reach of his work. His legacy continues to influence advancements in technology today.