Yukiko Umemoto

Title: Yukiko Umemoto: Innovator in Semiconductor Technology

Introduction

Yukiko Umemoto is a prominent inventor based in Kodaira, Japan. She has made significant contributions to the field of semiconductor technology, holding a total of 12 patents. Her work focuses on nonvolatile memory cells, which are crucial for modern electronic devices.

Latest Patents

One of her latest patents involves a semiconductor device that includes a plurality of nonvolatile memory cells. Each of these memory cells comprises a MOS type first transistor section used for information storage and a MOS type second transistor section that selects the first transistor section. The second transistor section features a bit line electrode connected to a bit line and a control gate electrode linked to a control gate control line. The first transistor section has a source line electrode connected to a source line, a memory gate electrode connected to a memory gate control line, and a charge storage region located directly below the memory gate electrode. Notably, the gate withstand voltage of the second transistor section is lower than that of the first transistor section. The relationship between the thickness of the gate insulating films of the two sections is defined as tc < tm.

Career Highlights

Yukiko has worked with notable companies in the semiconductor industry, including Renesas Electronics Corporation and Hitachi Ulsi Systems Co., Ltd. Her experience in these organizations has allowed her to develop innovative solutions that enhance the performance and efficiency of semiconductor devices.

Collaborations

Yukiko has collaborated with esteemed colleagues such as Toshihiro Tanaka and Yutaka Shinagawa. These partnerships have contributed to her success and the advancement of technology in her field.

Conclusion

Yukiko Umemoto is a trailblazer in semiconductor technology, with a strong portfolio of patents and a career marked by significant contributions to the industry. Her innovative work continues to impact the development of electronic devices worldwide.