Yoichi Kurosawa

Title: The Innovative Contributions of Yoichi Kurosawa

Introduction

Yoichi Kurosawa is a prominent inventor based in Atsugi, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of nine patents. His work focuses on advancing manufacturing methods for semiconductor devices, particularly those involving oxide semiconductor films.

Latest Patents

Kurosawa's latest patents include a manufacturing method for semiconductor devices that incorporates an oxide semiconductor film with conductivity and light-transmitting properties. This method involves forming an oxide semiconductor film over a first insulating film, followed by a two-step heat treatment process. The first heat treatment occurs in an atmosphere that allows oxygen to be released from the oxide semiconductor film, while the second treatment takes place in a hydrogen-containing atmosphere to achieve the desired conductivity.

Another notable patent is for a method of manufacturing a sputtering target, which enables the formation of an oxide semiconductor film with minimal defects. This process includes creating a polycrystalline In-M-Zn oxide powder through a series of steps, including mixing, sintering, and grinding various oxides. The resulting mixture is then compacted and sintered to produce a high-quality sputtering target.

Career Highlights

Kurosawa is currently employed at Semiconductor Energy Laboratory Co., Ltd., where he continues to innovate in the semiconductor field. His expertise and dedication have led to advancements that enhance the performance and reliability of semiconductor devices.

Collaborations

Throughout his career, Kurosawa has collaborated with notable figures in the industry, including Shunpei Yamazaki and Masashi Oota. These partnerships have fostered a collaborative environment that promotes innovation and the sharing of ideas.

Conclusion

Yoichi Kurosawa's contributions to semiconductor technology are invaluable, as evidenced by his numerous patents and ongoing work at Semiconductor Energy Laboratory Co., Ltd. His innovative methods for manufacturing semiconductor devices continue to shape the future of the industry.