This inventor holds 2 USPTO granted patents. Top assignee: Shin-Etsu Handotai Co., Ltd.. Active years: 1997-2002.
Location History:
- Urawa, JP (1997)
- Nishishirakawa-gun, JP (2002)
Company Filing History:
Years Active: 1997-2002
Title: Kirio Itoi: Innovator in Silicon Crystal Production
Introduction
Kirio Itoi is a notable inventor based in Nishishirakawa-gun, Japan. He has made significant contributions to the field of semiconductor technology, particularly in the production of silicon single crystals. With a total of 2 patents to his name, his work has had a considerable impact on the industry.
Latest Patents
Itoi's latest patents include a method for producing silicon single crystals and a production apparatus for the same. This innovative method involves growing a single crystal ingot while applying a magnetic field perpendicular to the crystal growth axis. The process ensures that one of the low or high-temperature regions generated at the surface of the silicon melt always covers the solid-liquid interface of the crystal growth. This technique enhances the uniformity of interstitial oxygen concentration along the growth direction, leading to high productivity and yield.
Another significant patent is the method and apparatus for slicing workpieces, such as semiconductor ingots. This invention features coolant nozzles positioned near the cutting edge of an annular blade, along with air nozzles connected to a compressed air supply. The system minimizes blade deflection during slicing, thereby reducing warpage in the sliced wafers.
Career Highlights
Kirio Itoi is currently employed at Shin-Etsu Handotai Co., Ltd., a leading company in the semiconductor industry. His work at this organization has allowed him to further develop his innovative ideas and contribute to advancements in silicon crystal production.
Collaborations
Throughout his career, Itoi has collaborated with esteemed colleagues such as Eiichi Iino and Tohru Ishizuka. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
Kirio Itoi's contributions to the field of semiconductor technology, particularly in silicon single crystal production, highlight his role as a significant inventor. His innovative methods and collaborative efforts continue to influence the industry positively.