This inventor holds 141 USPTO granted patents and 63 published patent applications and 1 EPO patent, primarily in Semiconductor Design (CPC class G03F1-36). Top assignees: D2s, Inc., Cadence Design Systems, Inc., Ds2, Inc.. Active years: 2005-2026.
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Company Filing History:
117 out of 137 
23 out of 2,614 
1 out of 1 Years Active: 2005-2026
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Title: Innovations in Lithography: The Contributions of Akira Fujimura
Introduction
Akira Fujimura, residing in Saratoga, CA, is a prominent inventor holding an impressive 118 patents. His extensive research and development in the field of lithography have led to significant advancements in semiconductor manufacturing techniques.
Latest Patents
Fujimura's most recent patents reveal groundbreaking methods and systems in reticle enhancement technology. One notable patent focuses on the fracturing of a pattern to be exposed on a surface using variable shaped beam (VSB) lithography. This method involves inputting an initial pattern, calculating a corresponding substrate pattern, and overlaying the initial pattern with a two-dimensional grid. By merging adjacent VSB shots, Fujimura's innovations allow for the creation of more efficient shot sets, ultimately enhancing manufacturing processes.
Another significant patent involves determining a charged particle beam exposure for local pattern density. This system enhances precise exposure of desired shapes using a charged particle beam, reliant on calculations of local pattern densities and adjustments based on predetermined maximum doses. These advancements underscore Fujimura's contributions to enhancing the efficacy of lithography techniques.
Career Highlights
Throughout his career, Akira Fujimura has worked with several notable companies, including D2S, Inc. and Cadence Design Systems, Inc. His expertise in advanced lithographic methods and his innovative spirit have contributed to the evolution of semiconductor fabrication, paving the way for more efficient and precise manufacturing.
Collaborations
Fujimura has collaborated with industry professionals such as Harold Robert Zable and Michael Tucker. These partnerships have spurred innovative ideas and enabled the development of cutting-edge technologies in the semiconductor field.
Conclusion
Akira Fujimura's dedication to innovation in the lithography sector is evident through his substantial patent portfolio and collaborative contributions. His work has not only shaped contemporary practices within the industry but also continues to be a driving force behind future advancements in semiconductor manufacturing technology.