Yoshinobu Yoneoka

Title: Yoshinobu Yoneoka: Innovator in Semiconductor Technology

Introduction

Yoshinobu Yoneoka is a notable inventor based in Abiko, Japan. He has made significant contributions to the field of semiconductor technology, particularly through his innovative patent that enhances the yield in semiconductor circuitry.

Latest Patents

Yoneoka holds a patent for a two-step sinter method utilized in conjunction with memory cells. This process is designed to increase yield in semiconductor circuitry that incorporates redundant circuitry for replacing defective normal circuitry. The first step involves an insufficient sinter operation conducted in a hydrogen atmosphere at a temperature of less than 350°C. This initial step ensures that no significant change occurs in the interface trap density. Following this, the integrated circuit undergoes testing, and any defective normal circuitry is replaced with redundant circuitry. The final step involves a sufficient sinter operation at temperatures between 350°C and 500°C for over 30 minutes, also performed in a hydrogen atmosphere. This method effectively terminates dangling bonds at the interface with hydrogen, with an optimal temperature of approximately 400°C. The integrated circuit is then subjected to reliability and burn-in procedures.

Career Highlights

Yoneoka is associated with Texas Instruments Corporation, where he has applied his expertise in semiconductor technology. His work has contributed to advancements in the reliability and efficiency of integrated circuits.

Collaborations

Yoneoka has collaborated with notable coworkers, including Osaomi Enomoto and Yoichi Miyai. Their combined efforts have furthered the development of innovative solutions in the semiconductor industry.

Conclusion

Yoshinobu Yoneoka's contributions to semiconductor technology through his patented methods demonstrate his commitment to innovation and excellence in the field. His work continues to influence advancements in integrated circuit reliability and performance.