Hanako Hirayama

Title: Hanako Hirayama: Innovator in Thin Film Technology

Introduction

Hanako Hirayama is a prominent inventor based in Kawasaki, Japan. She has made significant contributions to the field of thin film technology, particularly through her innovative methods for forming thin films with excellent step coverage.

Latest Patents

Hirayama holds a patent for a thin film forming method. This invention allows for the formation of a thin film with a desired thickness on the inner sidewall of a step during both film forming and etching processes. The method involves depositing a target material on a substrate with a concave step that has an opening width or diameter of 3 micrometers or less and an aspect ratio of 1 or more. The process includes a first step of depositing a thin film onto the bottom of the step and a second step of forming a film on the inner sidewall by re-sputtering the thin film deposited on the bottom. The pressure in the process chamber during the second step is set lower than in the first step, and the ratio of anode power to cathode power is greater in the second step.

Career Highlights

Hirayama is currently employed at Canon Anelva Corporation, where she continues to advance her research and development in thin film technologies. Her work has been instrumental in enhancing the efficiency and effectiveness of film formation processes.

Collaborations

Hirayama collaborates with her coworker, Eisaku Watanabe, who also contributes to the innovative projects at Canon Anelva Corporation.

Conclusion

Hanako Hirayama's contributions to thin film technology exemplify her dedication to innovation in the field. Her patented methods are paving the way for advancements in various applications, showcasing her role as a leading inventor in this specialized area.