Seiichi Shundo

Title: Seiichi Shundo: Innovator in Semiconductor Memory Systems

Introduction

Seiichi Shundo is a notable inventor recognized for his contributions to semiconductor memory systems. He is based in Hatoyama-machi, Japan, and holds a patent that showcases his innovative approach to addressing defects in memory modules. His work has significantly impacted the field of memory technology.

Latest Patents

Seiichi Shundo's patent is a semiconductor memory system designed to remedy defects in large-scale integration (LSI) mounted on memory modules. The invention includes an input interface for capturing address and control signals, which is compatible with dynamic RAM. It features a memory circuit that allows for the electrical writing of chip addresses and defective addresses, ensuring nonvolatile memory functionality. Additionally, the system incorporates a redundancy remedy RAM portion composed of static RAM, which enhances reliability by selecting word lines based on compare match signals. This innovative design also includes a data input/output portion that selectively activates circuits corresponding to defective dynamic RAM.

Career Highlights

Throughout his career, Seiichi Shundo has worked with prominent companies in the technology sector. He has been associated with Hitachi, Ltd. and Hitachi ULSI Engineering Corporation, where he contributed to advancements in semiconductor technology. His experience in these organizations has provided him with a solid foundation in the field of memory systems.

Collaborations

Seiichi Shundo has collaborated with notable colleagues, including Shoji Wada and Kanehide Kenmizaki. Their combined expertise has fostered innovation and development in semiconductor technologies.

Conclusion

Seiichi Shundo's work in semiconductor memory systems exemplifies his commitment to innovation and excellence in technology. His patent reflects a significant advancement in addressing memory defects, showcasing his valuable contributions to the field.