Tadato Nagasawa

Title: **Innovations by Tadato Nagasawa: Pioneering Semiconductor Technologies**

Introduction

Tadato Nagasawa, a distinguished inventor based in Tokyo, Japan, has made significant contributions to semiconductor technology. With a total of five patents to his name, Nagasawa's innovations are at the forefront of enhancing semiconductor fabrication processes.

Latest Patents

Nagasawa's latest patents showcase advanced methodologies in semiconductor chip fabrication. One notable invention is a semiconductor chip fabrication method, which involves a modified layer forming step. This process utilizes a laser beam with a specific transmission wavelength applied from the backside of the semiconductor wafer. The goal is to form a modified layer along the streets formed on the wafer’s front side. Following this, a metal film is deposited on the wafer's backside, and the wafer is then attached to adhesive tape for division into individual semiconductor chips.

Another significant patent is a wafer dividing method that innovatively divides a wafer along multiple intersecting lines. This method includes the formation of an internal deteriorated layer along both the first and second dividing lines using a laser beam. It also entails an intersection deteriorated layer forming step, which creates a thicker deteriorated layer at the crossings of these lines, ultimately enabling effective division of the wafer into individual chips through external force application.

Career Highlights

Nagasawa's work has primarily been with Disco Corporation, a respected leader in the semiconductor industry. His contributions have led to advancements that are crucial for increasing efficiency and precision in semiconductor manufacturing. His innovative techniques have made significant impacts on production processes, aligning with the company's commitment to technological excellence.

Collaborations

In his career, Tadato Nagasawa has collaborated with notable coworkers, including Yusuke Nagai and Keiichi Kajiyama. Together, they foster a creative environment that drives innovation and addresses the challenges of semiconductor development.

Conclusion

Tadato Nagasawa’s inventive spirit and technical expertise have placed him at the vanguard of semiconductor technology. His patents not only reflect his ingenuity but also contribute to the broader field of electronics. As he continues to push the boundaries of innovation, Nagasawa remains a significant figure in advancing semiconductor manufacturing techniques, paving the way for future technologies.