Company Filing History:
Years Active: 2010-2015
Title: The Innovations of Marc Castagna
Introduction
Marc Castagna is an accomplished inventor based in Portland, OR (US). He has made significant contributions to the field of microscopy, particularly with his innovative patents. With a total of 2 patents, Castagna continues to push the boundaries of technology in his area of expertise.
Latest Patents
One of his latest patents is the Environmental Scanning Electron Microscope (ESEM/SEM) gas injection apparatus with anode integrated with gas concentrating structure. This gas injection system provides a local region at the sample surface that has sufficient gas concentration to be ionized by secondary electrons, effectively neutralizing charge on the sample surface. The design includes a gas concentration structure that concentrates gas near the surface, enhancing the efficiency of the system. An optional hole in the gas concentration structure allows the charged particle beam to impact the interior of a shrouded region. Additionally, an anode near the surface increases the number of ions that return to the workpiece surface for charge neutralization, showcasing the innovative nature of his work.
Another notable patent is the Slice and View with Decoration technique. This method allows for the imaging of imprecisely located defects by milling a series of slices and performing a light, preferential etch. This process creates a topographical interface between materials with similar secondary electron emission characteristics. The slices are designed to be small enough to capture minor defects while being large enough to mitigate issues with redeposition.
Career Highlights
Marc Castagna is currently employed at FEI Company, where he continues to develop and refine his innovative technologies. His work has had a significant impact on the field of electron microscopy, enhancing the capabilities of researchers and scientists worldwide.
Collaborations
Throughout his career, Castagna has collaborated with notable colleagues, including Matthew Bray and Clive D Chandler. These partnerships have contributed to the advancement of his projects and the overall progress in the field.
Conclusion
Marc Castagna's contributions to the field of microscopy through his innovative patents demonstrate his commitment to advancing technology. His work continues to inspire and facilitate research in various scientific domains.