Masahiko Nakamori

Title: The Innovations of Masahiko Nakamori

Introduction

Masahiko Nakamori, an accomplished inventor located in Ohtsu, Japan, has made significant contributions to the field of semiconductor device production. With a total of 17 patents to his name, Nakamori is known for his pioneering work on polishing pads that facilitate high-precision manufacturing processes.

Latest Patents

Among Nakamori's latest innovations is a series of patents focusing on polishing pads that enhance the optical endpoint sensing during polishing processes. These polishing pads display exceptional polishing characteristics, including superior surface and in-plane uniformity. His inventions feature light-transmitting regions that allow for increased precision and efficiency in processing large areas of semiconductor wafers. Specifically, his first invention details a polishing pad with a light-transmitting region that boasts a transmittance of at least 50% within the wavelength range of 400 to 700 nm. The second invention emphasizes a light-transmitting region with a thickness between 0.5 to 4 mm, achieving an impressive transmittance of not less than 80% over the 600 to 700 nm spectrum. His third invention innovatively positions the light-transmitting region between the central and peripheral portions of the polishing pad, extending the diametrical length significantly compared to its circumferential counterpart. These pads are engineered to minimize scratches on polishing surfaces, while maintaining a high polishing rate and excellent planarization, even under prolonged use.

Career Highlights

Masahiko Nakamori's tenure at Toyo Tire & Rubber Co., Ltd. has been marked by relentless pursuit of innovation in the semiconductor industry. His work has not only contributed to the technical advancement of polishing techniques but has also set new industry standards for manufacturing efficiency and product quality.

Collaborations

Throughout his career, Nakamori has collaborated with notable coworkers, including Takatoshi Yamada and Tetsuo Shimomura. Together, they have pushed the boundaries of technology, leading to innovations that have benefited the semiconductor manufacturing sector.

Conclusion

Masahiko Nakamori's contributions through his patents and collaborative efforts signify a commitment to advancing the semiconductor industry. His innovative polishing pads are just one example of how his work continues to impact the field, enhancing the precision and efficiency of semiconductor device production. As a leading inventor, Nakamori remains a vital figure in the ongoing evolution of technology in Japan and beyond.