Masashii Wada

Title: Masashii Wada: Innovator in Nonvolatile Semiconductor Memory Devices

Introduction

Masashii Wada is a prominent inventor based in Kodaira, Japan. He has made significant contributions to the field of semiconductor technology, particularly in the development of nonvolatile memory devices. With a total of 3 patents to his name, Wada's work has had a lasting impact on the industry.

Latest Patents

Wada's latest patents focus on nonvolatile semiconductor memory devices. These devices include a memory array that comprises a plurality of memory cells, where predetermined voltages are applied to selected memory cells to change their threshold voltages. Information is stored according to the difference between these threshold voltages, with some memory cells designated as spare cells. The nonvolatile semiconductor memory device is equipped with a latch circuit connected to each bit line of the memory array through a transmission switch. This design allows the memory array to store substitutional information for replacing defective bits with spare memory cells. The substitutional information is transferred from the memory array to the latch circuit through the transmission switch and held in the latch circuit.

Career Highlights

Throughout his career, Masashii Wada has worked with notable companies such as Hitachi, Ltd. and Renesas Technology Corporation. His experience in these leading technology firms has contributed to his expertise in semiconductor innovations.

Collaborations

Wada has collaborated with several talented individuals in the field, including Akihiro Fujita and Kiichi Makuta. These collaborations have further enhanced his contributions to semiconductor technology.

Conclusion

Masashii Wada's innovative work in nonvolatile semiconductor memory devices showcases his expertise and dedication to advancing technology. His patents reflect a commitment to improving memory storage solutions, making him a significant figure in the field.