Shigeru Sugamori

Title: Innovations by Shigeru Sugamori: A Pioneer in Semiconductor Testing

Introduction

Shigeru Sugamori, an accomplished inventor from Gyoda, Japan, has made significant contributions to semiconductor testing technology. With a total of four patents to his name, Sugamori's innovations are characterized by their focus on improving the reliability and efficiency of integrated circuit (IC) testing processes.

Latest Patents

One of Sugamori's latest patents is an innovative IC Tester. This device supplies test pattern signals to an IC being tested and compares the response signals with an expected-value pattern signal to determine the acceptability of the IC. Notably, during testing, the IC is isolated from the drivers by a separator, allowing for accurate signal generation through a timing signal generator designed to create reference signals. The invention includes phase comparator means to compare the phase of the reference signals and outputs from the drivers, and variable delay means that are adjusted based on the comparison results to mitigate signal skews.

Another of his notable inventions is the Semiconductor Memory Device Test Apparatus. In this system, a memory device under test is accessed by an address generated by a pattern generator, which allows for writing and subsequently reading data. The read data is then compared with the expected data, and discrepancies are recorded in a fault-address memory system. If a disagreement arises, the counting operation is paused for any confirmed fault data. A fault signal is generated when discrepancies surpass a predetermined threshold, ensuring precise fault detection in semiconductor memory testing.

Career Highlights

Throughout his career, Shigeru Sugamori has worked with renowned organizations, such as Nippon Telegraph and Telephone Public Corporation and Takeda Riken Kogyo Kabushiki Kaisha. His work in these companies has provided him with the platform to innovate and drive advancements in semiconductor testing technologies.

Collaborations

Sugamori has collaborated with notable colleagues, including Yoshichika Ichimiya and Tsuneta Sudo. These partnerships have played a significant role in fostering a creative environment that encourages innovation in the field of semiconductor technology.

Conclusion

Shigeru Sugamori's contributions to semiconductor testing through his inventive patents highlight his commitment to enhancing the accuracy and efficiency of testing processes. As an inventor, his work continues to inspire advancements in electronic design and quality assurance in the semiconductor industry.