Tatsuo Chijimatsu

Title: Innovations of Tatsuo Chijimatsu

Introduction

Tatsuo Chijimatsu is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 4 patents. His work focuses on improving manufacturing methods and device performance in the semiconductor industry.

Latest Patents

Chijimatsu's latest patents include a circuit-pattern-data correction method and a semiconductor-device manufacturing method. The circuit-pattern-data correction method aims to prevent excessive correction when model-based proximity-effect correction (OPC) is applied to a corrected circuit pattern. This excessive correction can occur due to a step close to a circuit-pattern corner, which is produced when rule-based OPC is applied. The method involves detecting the step, removing it, and then applying model-based OPC to generate exposure data.

Another significant patent is for a nonvolatile semiconductor memory device and the method for fabricating it. This device features a channel region formed in a semiconductor substrate, with a gate electrode positioned over it. The design includes a first pair of source/drain regions arranged in one direction and a second pair arranged in a direction that intersects the first. This innovative structure allows for improved functionality in memory cell transistors.

Career Highlights

Throughout his career, Tatsuo Chijimatsu has worked with prominent companies such as Fujitsu Corporation and Fujitsu Semiconductor Limited. His experience in these organizations has contributed to his expertise in semiconductor technologies and innovations.

Collaborations

Chijimatsu has collaborated with notable colleagues, including Takashi Maruyama and Koichi Kobayashi. These partnerships have likely enhanced his research and development efforts in the semiconductor field.

Conclusion

Tatsuo Chijimatsu's contributions to semiconductor technology through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry, paving the way for advancements in semiconductor manufacturing and device performance.