Toshitsugu Ishii

Title: The Innovations of Toshitsugu Ishii

Introduction

Toshitsugu Ishii is a prominent inventor based in Gunma, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 9 patents. His work focuses on manufacturing methods and testing apparatuses that enhance the efficiency and reliability of semiconductor devices.

Latest Patents

Ishii's latest patents include a manufacturing method of a semiconductor device and a test socket for use in the same. The manufacturing method involves preparing a test object that includes a body for sealing a semiconductor chip and a lead terminal. It also includes a step of preparing a test socket with a first contact pin, allowing for electrical testing of the semiconductor chip by contacting the first contact pin with the lead terminal. The lead terminal features a lead upper surface and a lead bottom surface, along with a protruding portion and a bending portion that connects different parts of the terminal.

Another notable patent describes a method of manufacturing a semiconductor device using a test apparatus that includes a test board, a unit, and a probe pin. The probe pin has two tip portions that are identical in shape. This innovative approach allows for efficient electrical testing of multiple semiconductor packages by simply rearranging the unit within the test apparatus.

Career Highlights

Toshitsugu Ishii is currently employed at Renesas Electronics Corporation, where he continues to develop cutting-edge technologies in the semiconductor industry. His work has been instrumental in advancing the capabilities of semiconductor devices, making them more efficient and reliable for various applications.

Collaborations

Ishii has collaborated with notable coworkers such as Naohiro Makihira and Hidekazu Iwasaki. Their combined expertise has contributed to the successful development of innovative semiconductor technologies.

Conclusion

Toshitsugu Ishii's contributions to semiconductor technology through his patents and work at Renesas Electronics Corporation highlight his role as a key innovator in the field. His advancements continue to shape the future of semiconductor manufacturing and testing.