Toshifumi Ishida

Title: Innovations of Toshifumi Ishida

Introduction

Toshifumi Ishida is a prominent inventor based in Nirasaki, Japan. He has made significant contributions to the field of plasma processing technology. With a total of 7 patents to his name, Ishida continues to push the boundaries of innovation in his industry.

Latest Patents

Ishida's latest patents include an edge ring and an etching apparatus. The edge ring features a ramp surface with a height that decreases from the outer edge-side portion toward the inner edge-side portion. This design satisfies the relation of T2/T1 > T4/T3, where T1 and T2 represent the thickness of the edge ring before plasma treatment at different positions, while T3 and T4 represent the thickness after treatment. Additionally, he has developed a plasma processing apparatus that includes an annular member, a support unit, a chamber, and a pressure control unit. The annular member is designed with a groove or protrusion on its bottom surface, which interacts with the support unit to facilitate effective plasma processing.

Career Highlights

Ishida is currently employed at Tokyo Electron Limited, a leading company in the semiconductor manufacturing equipment industry. His work focuses on advancing plasma processing technologies that are crucial for the production of microelectronics.

Collaborations

Throughout his career, Ishida has collaborated with notable colleagues, including Daisuke Hayashi and Norihiko Amikura. These partnerships have contributed to the development of innovative technologies and solutions in the field.

Conclusion

Toshifumi Ishida's contributions to plasma processing technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence advancements in semiconductor manufacturing.