This inventor holds 5 USPTO granted patents. Top assignee: Matsushita Electric Industrial Co., Ltd.. Active years: 1997-2005.
Company Filing History:
Years Active: 1997-2005
Title: Tooru Nasu: Innovator in Semiconductor Technology
Introduction
Tooru Nasu is a prominent inventor based in Kyoto, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 5 patents. His work focuses on enhancing the efficiency and functionality of semiconductor memory devices.
Latest Patents
One of Nasu's latest patents is for a semiconductor memory device. This device includes a memory cell capacitor designed to store data effectively. The capacitor consists of a first electrode connected to a contact plug, a second electrode, and a capacitive insulating film positioned between the two electrodes. Notably, the first electrode features a first barrier film in contact with the contact plug and a second barrier film that prevents oxygen diffusion. This innovative design ensures that the second barrier film covers both the upper and side faces of the first barrier film.
Another significant patent by Nasu is for a semiconductor device that includes an integrated circuit and a capacitor. In this design, a bottom electrode, a dielectric film, and a top electrode are formed independently of the integrated circuit on the interlayer insulating film. The top and bottom electrodes are connected via metal interconnections through contact holes in a protective film. This configuration allows either the top or bottom electrode to connect to the bias line of the integrated circuit, while the other connects to the ground line, effectively reducing extraneous emissions without external connections.
Career Highlights
Tooru Nasu is currently employed at Matsushita Electric Industrial Co., Ltd., a leading company in the electronics industry. His work has been instrumental in advancing semiconductor technologies, making him a valuable asset to his organization.
Collaborations
Throughout his career, Nasu has collaborated with notable colleagues, including Eiji Fujii and Yasuhiro Shimada. These partnerships have fostered innovation and contributed to the development of cutting-edge semiconductor solutions.
Conclusion
Tooru Nasu's contributions to semiconductor technology through his patents and collaborations highlight his role as an influential inventor in the field. His innovative designs continue to shape the future of semiconductor devices.