Masakazu Hamasaki

Title: Masakazu Hamasaki: Innovator in Light-Exposure Technology

Introduction

Masakazu Hamasaki is a prominent inventor based in Yokkaichi, Japan. He has made significant contributions to the field of light-exposure technology, holding a total of 2 patents. His work primarily focuses on methods and apparatuses that enhance the efficiency and precision of light exposure in semiconductor manufacturing.

Latest Patents

Hamasaki's latest patents include a light-exposure method and a light-exposure apparatus. According to one embodiment, a correction plot is generated where the slit width is adjusted based on overlay deviation in a shot region. This method involves setting a light-exposure scanning speed, defined by the relative speed between a photomask stage and a processing object stage, to achieve the desired light-exposure amount at each coordinate position. The light-exposure process is then performed while controlling the slit width, photomask stage, and processing stage in accordance with the correction plot and scanning speed. Another notable patent is related to the layout method of a mask pattern, which involves dividing a layout region into multiple units and arranging patterns to optimize exposure light distribution.

Career Highlights

Hamasaki is currently employed at Toshiba Memory Corporation, where he continues to innovate in the semiconductor field. His work has been instrumental in advancing technologies that are critical for modern electronics.

Collaborations

Hamasaki has collaborated with notable colleagues, including Yoshihiro Yanai and Michiya Takimoto, contributing to a dynamic and innovative work environment.

Conclusion

Masakazu Hamasaki's contributions to light-exposure technology have positioned him as a key figure in the semiconductor industry. His innovative patents reflect a commitment to enhancing manufacturing processes and improving the efficiency of electronic devices.