Yasutaka Sato

Title: Yasutaka Sato: Innovator in Charged Particle Beam Technology

Introduction

Yasutaka Sato is a prominent inventor based in Hachioji, Japan. He has made significant contributions to the field of charged particle beam technology. With a total of 3 patents, Sato's work focuses on advanced methods and apparatuses that enhance the precision and efficiency of charged particle beam writing.

Latest Patents

Sato's latest patents include a "Charged Particle Beam Writing Apparatus" and a "Charged Particle Beam Writing Method." In one embodiment, a length measurer is described, which incorporates a first laser interferometer positioned within the writing chamber. This system synthesizes a laser beam with a first frequency that travels back and forth between the interferometer and the stage, along with a second frequency reflected in the interferometer, ultimately outputting a first beat signal. Additionally, a wall surface displacement measurer is included, featuring a second laser interferometer that performs a similar function, allowing for precise calculations of the stage's position based on the difference between the two beat signals.

Another notable patent is the "Beam Detector, Multi Charged Particle Beam Irradiation Apparatus, and Beam Detector Adjustment Method." This invention outlines a beam detector that consists of a first aperture substrate with a passage hole smaller than the pitch between beams of a multi charged particle beam. It also includes a second aperture substrate that allows one detection target beam to pass through, along with a sensor that detects the beam current of the target beam. The second aperture substrate is designed to be light-permeable and is made from a conductive material.

Career Highlights

Yasutaka Sato is currently employed at Nuflare Technology, Inc., where he continues to innovate in the field of charged particle beam technology. His work has been instrumental in advancing the capabilities of charged particle beam writing systems.

Collaborations

Sato collaborates with talented coworkers, including Kiminobu Akeno and Yuto Asakura. Their combined expertise contributes to the development of cutting-edge technologies in their field.

Conclusion

Yasutaka Sato is a key figure in the realm of charged particle beam technology, with a focus on enhancing precision and efficiency through his innovative patents. His contributions continue to shape the future of this specialized field.