Toshimi Ohsawa

Title: Innovations of Toshimi Ohsawa

Introduction

Toshimi Ohsawa is a notable inventor based in Gyoda, Japan. He has made significant contributions to the field of semiconductor testing, holding a total of 7 patents. His work focuses on developing advanced testing apparatuses and methods that enhance the efficiency and accuracy of memory testing.

Latest Patents

Ohsawa's latest patents include a testing apparatus and a pattern generator for semiconductor test systems. The testing apparatus features a pattern generator that generates address and data signals for multiple memories under test. It includes logic comparators that identify discrepancies between output signals and expectation signals, as well as fail memories that store generated fail data. Additionally, the apparatus incorporates memory controllers that generate bad address information based on stored fail data, allowing for concurrent writing of bad information into the memories under test.

The pattern generator is designed to produce test patterns with a higher repetition rate than the basic rate, enabling precise modifications of the test pattern data based on address data. This innovation includes an address generator and multiple data generators that work together to ensure accurate testing of synchronous memories.

Career Highlights

Ohsawa is currently employed at Adv Antest Corporation, where he continues to innovate in the field of semiconductor testing. His expertise and inventions have significantly impacted the efficiency of memory testing processes.

Collaborations

Some of his notable coworkers include Shinichi Kobayashi and Tadashi Okazaki, who contribute to the collaborative environment at Adv Antest Corporation.

Conclusion

Toshimi Ohsawa's contributions to semiconductor testing through his innovative patents demonstrate his commitment to advancing technology in this field. His work continues to influence the efficiency and accuracy of memory testing processes.