Tomotsugu Ohashi

Title: Tomotsugu Ohashi: Innovator in Etching Technology

Introduction

Tomotsugu Ohashi is a notable inventor based in Singapore, recognized for his contributions to etching technology. He holds 2 patents that showcase his innovative approaches in the field. His work primarily focuses on methods that enhance the efficiency and quality of etching processes.

Latest Patents

One of his latest patents is a method of etching capable of rapidly and flatly performing wet etching on a silicon substrate using fluonitric acid represented by HF(a)HNO(b)HO(c), where the unit of a, b, and c is wt % and a+b+c=100. This method significantly lowers the etching rate of an SiO layer with highly concentrated fluonitric acid by appropriately selecting its composition. This allows for rapid etching of the silicon substrate while enhancing the flatness of the etched surface. Another significant patent is the ultra high-speed wet etching apparatus, which features an etching method using an apparatus with four arms positioned from the center of the stage toward the peripheral portion at an angle difference of about 90 degrees. This design allows for efficient etchant supply to various positions on the rotating object, optimizing the etching process.

Career Highlights

Tomotsugu Ohashi is affiliated with Tohoku University, where he continues to advance his research and development in etching technologies. His work has garnered attention for its practical applications in various industries.

Collaborations

He collaborates with esteemed colleagues such as Tadahiro Ohmi and Kazuhiro Yoshikawa, contributing to a dynamic research environment that fosters innovation.

Conclusion

Tomotsugu Ohashi's innovative work in etching technology exemplifies the impact of dedicated research and collaboration in advancing industrial processes. His patents reflect a commitment to enhancing efficiency and quality in etching applications.