This inventor holds 7 USPTO granted patents and 1 published patent application and 2 EPO patents. Top assignee: Shin-Etsu Handotai Co., Ltd.. Active years: 1998-2019.
Location History:
- Gunma-ken, JP (2000)
- Annaka, JP (1998 - 2019)
Company Filing History:
Years Active: 1998-2019
Title: The Innovative Contributions of Tomosuke Yoshida
Introduction
Tomosuke Yoshida is a prominent inventor based in Annaka, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 7 patents. His work focuses on methods for manufacturing silicon wafers, which are essential components in the electronics industry.
Latest Patents
Yoshida's latest patents include a method for manufacturing a bonded SOI wafer. This innovative method involves bonding a bond wafer and a base wafer, each composed of a silicon single crystal, via an insulator film. The process includes depositing a polycrystalline silicon layer on the bonding surface of the base wafer, polishing it, and then bonding it to the bond wafer. This method effectively prevents single-crystallization of polycrystalline silicon while minimizing warpage in the base wafer.
Another notable patent is for a method of manufacturing a silicon epitaxial wafer. This process involves vapor-phase growing a silicon single crystal thin film on a silicon single crystal substrate in a hydrogen atmosphere. The cooling rate of the silicon epitaxial wafer is carefully controlled to ensure the quality of the thin film, which is crucial for its performance in electronic applications.
Career Highlights
Tomosuke Yoshida is currently employed at Shin-Etsu Handotai Co., Ltd., a leading company in the semiconductor industry. His work has been instrumental in advancing the technology used in silicon wafer production, contributing to the efficiency and effectiveness of semiconductor devices.
Collaborations
Yoshida has collaborated with notable colleagues, including Masaro Tamatsuka and Ken Aihara. These partnerships have fostered innovation and have been vital in the development of new technologies in the semiconductor field.
Conclusion
Tomosuke Yoshida'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 silicon wafers, ensuring advancements in electronic devices.