Asami Suemura

Title: Asami Suemura: Innovator in Silicon Oxy-Nitride Technology

Introduction

Asami Suemura is a prominent inventor based in Nirasaki, Japan. She has made significant contributions to the field of materials science, particularly in the development of insulating films. Her innovative work has led to the filing of a patent that showcases her expertise and dedication to advancing technology.

Latest Patents

Asami Suemura holds a patent for a "Method and apparatus for forming insulating film containing silicon oxy-nitride." This patent outlines a comprehensive process that includes several steps: a loading step, temperature raising step, oxidation step, cycle purge step, and annealing step. The temperature raising step is crucial as it is performed while supplying nitrogen gas and oxygen gas to prevent the nitriding of the silicon layer surface, maintaining a supply ratio of 100:1 to 1000:1. The oxidation step occurs at temperatures ranging from 700 to 950°C, utilizing a gas mixture that contains 1 to 5 vol % of water vapor and 95 to 99 vol % of nitrogen gas to form a silicon oxide film. Finally, the annealing step is conducted at temperatures between 800 to 950°C, where nitrogen monoxide gas is supplied to convert a portion of the silicon oxide film into silicon oxy-nitride.

Career Highlights

Asami Suemura is currently employed at Tokyo Electron Limited, a leading company in the semiconductor industry. Her work at this organization has allowed her to collaborate with other talented professionals in the field.

Collaborations

Some of her notable coworkers include Yoshihide Tada and Shingo Hishiya, who have also contributed to advancements in semiconductor technology.

Conclusion

Asami Suemura's innovative approach to forming silicon oxy-nitride films exemplifies her commitment to enhancing materials science. Her patent reflects her expertise and the potential impact of her work on the semiconductor industry.