Masaharu Motohashi

Title: Masaharu Motohashi: Innovator in Semiconductor Technology

Introduction

Masaharu Motohashi is a prominent inventor based in Ome, Japan. He has made significant contributions to the field of semiconductor technology, particularly through his innovative designs and patents. His work has been instrumental in advancing manufacturing processes in the electronics industry.

Latest Patents

Motohashi holds a patent for a wafer chuck, exposure system, and method of manufacturing semiconductor devices. This patent describes a wafer chuck designed for flatly vacuum-chucking a semiconductor wafer supported by support pins. The design ensures that the pressure in a suction chamber, surrounded by an external wall, does not adversely affect the semiconductor wafer. The upper surface of the external wall is strategically formed to be lower than the upper surfaces of the support pins, allowing for optimal performance. The distance between the external wall and the closest support pins is specified to be up to 1.8 mm, with an alignment pitch of the support pins not exceeding 1.5 times this distance.

Career Highlights

Motohashi is associated with Hitachi Tokyo Electronics Co., Ltd., where he has contributed to various projects and innovations. His expertise in semiconductor manufacturing has positioned him as a key figure in the industry.

Collaborations

Throughout his career, Motohashi has collaborated with notable colleagues, including Seiichiro Kobayashi and Koichi Koyanagi. These collaborations have fostered a creative environment that has led to significant advancements in their field.

Conclusion

Masaharu Motohashi's contributions to semiconductor technology through his innovative patents and collaborations highlight his importance in the industry. His work continues to influence the manufacturing processes of semiconductor devices, showcasing the impact of his inventions.