Company Filing History:
Years Active: 2014-2017
Title: Innovations by Yuuki Ooi
Introduction
Yuuki Ooi is a notable inventor based in Annaka, Japan. He has made significant contributions to the field of silicon single crystal wafer technology. With a total of 4 patents to his name, Ooi's work focuses on methods that enhance the quality and manufacturing processes of silicon wafers.
Latest Patents
One of Yuuki Ooi's latest patents is a method for detecting crystal defects in silicon single crystal wafers doped with nitrogen. This innovative method allows for the detection of crystal defects of sizes 25 nm or smaller by implanting oxygen into the defects through heat treatment in an oxygen atmosphere. The process ensures that the heat treatment temperature is optimized to achieve a specific ratio of oxygen solid solubility to the initial oxygen concentration.
Another significant patent by Ooi is a method for manufacturing silicon single crystal wafers and annealed wafers. This method involves heat treatment of silicon wafers with low oxygen and nitrogen concentrations, which are obtained from V-region silicon single crystal ingots grown by the Czochralski method. The process aims to produce low-cost silicon wafers suitable for IGBT applications while ensuring that the bulk has no defects and maintains a uniform radial resistivity distribution.
Career Highlights
Yuuki Ooi is currently associated with Shin-Etsu Handotai Co., Ltd., a leading company in the semiconductor industry. His work at the company has been instrumental in advancing silicon wafer technology, contributing to the efficiency and effectiveness of semiconductor manufacturing.
Collaborations
Ooi has collaborated with notable colleagues such as Wei Feng Qu and Fumio Tahara. These collaborations have further enriched his research and development efforts in the field of silicon technology.
Conclusion
Yuuki Ooi's innovative patents and contributions to silicon wafer technology highlight his importance in the field. His work continues to influence advancements in semiconductor manufacturing, showcasing the impact of dedicated inventors in technology.