Takuma Yagi

Title: Takuma Yagi: Innovator in Semiconductor Technology

Introduction

Takuma Yagi is a prominent inventor based in Fuchu, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 2 patents. His work focuses on the development of advanced semiconductor laminated films, which are crucial for various electronic applications.

Latest Patents

Yagi's latest patents include a manufacturing method for semiconductor laminated film and the semiconductor laminated film itself. The semiconductor laminate film consists of a silicon substrate and a semiconductor layer that contains both silicon and germanium. This semiconductor layer is characterized by a surface roughness of Rms of 1 nm or less. Furthermore, it adheres to a specific relationship where the thickness (t) of the semiconductor layer is less than or equal to 0.881 times the ratio (x) of germanium atoms to the total number of silicon and germanium atoms in the layer.

The manufacturing method involves forming the semiconductor layer on a silicon substrate using a sputtering method. This method specifies that the film formation temperature should be less than 500°C, with a film formation pressure ranging from 1 mTorr to 11 mTorr. Alternatively, if the film formation temperature is less than 600°C, the pressure should be equal to or more than 2 mTorr and less than 5 mTorr. The sputtering process utilizes a gas mixture with a hydrogen gas volume ratio of less than 0.1%, ensuring the semiconductor layer meets the aforementioned thickness-to-atom ratio relationship.

Career Highlights

Throughout his career, Takuma Yagi has worked with esteemed institutions such as the Tokyo University of Agriculture and Technology and the National Institute of Information and Communications Technology. His research and innovations have significantly impacted the semiconductor industry, paving the way for advancements in electronic devices.

Collaborations

Yagi has collaborated with notable colleagues, including Yoshiyuki Suda and Takahiro Tsukamoto. These partnerships have fostered a collaborative environment that enhances the development of innovative semiconductor technologies.

Conclusion

Takuma Yagi's contributions to semiconductor technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence advancements in electronic materials and manufacturing processes.