This inventor holds 4 USPTO granted patents. Top assignee: Nec Electronics Corporation. Active years: 2003-2010.
Location History:
- Tokyo, JP (2003 - 2004)
- Kanagawa, JP (2010)
Company Filing History:
Years Active: 2003-2010
Title: Mariko Makabe: Innovator in Non-Volatile Memory Technology
Introduction
Mariko Makabe is a prominent inventor based in Tokyo, Japan. She has made significant contributions to the field of semiconductor technology, particularly in the development of non-volatile memory elements. With a total of 4 patents to her name, her work has had a substantial impact on the industry.
Latest Patents
One of her latest patents is a method of fabricating a non-volatile memory element that includes nitriding and oxidation of an insulating film. This innovative approach modifies the film quality while preventing the generation of trap sites. The design features a floating gate positioned on a channel-forming region near the surface of a silicon substrate, with an interpoly insulating film that contacts the floating gate. Additionally, a control gate is provided to interact with the interpoly insulating film, opposing at least part of the floating gate. The process involves exposing the interpoly insulating film to an atmosphere containing nitrogen and oxygen, allowing for simultaneous nitriding and oxidation.
Another notable patent is for a high-performance MOS transistor of LDD structure, which includes a gate insulating film with a nitride central portion and oxide end portions. This MOS transistor features a gate insulating film on a silicon substrate, with a central portion made of a nitride insulating film and thicker oxide end portions. The design also incorporates a p-type gate electrode, sidewalls, and a pair of p-type source/drain areas, creating an efficient channel area between them.
Career Highlights
Mariko Makabe is currently employed at NEC Electronics Corporation, where she continues to push the boundaries of semiconductor technology. Her work has been instrumental in advancing the capabilities of memory devices and transistors, making them more efficient and reliable.
Collaborations
Throughout her career, Mariko has collaborated with notable colleagues, including Shin Koyama and Koichi Ando. These partnerships have fostered innovation and contributed to the successful development of her patented technologies.
Conclusion
Mariko Makabe stands out as a leading inventor in the field of semiconductor technology. Her innovative patents and contributions to non-volatile memory elements and MOS transistors highlight her significant role in advancing this critical industry.