Company Filing History:
Years Active: 1991-1993
Title: Ritsuko Tsutsumi: Innovator in Semiconductor Technology
Introduction
Ritsuko Tsutsumi is a prominent inventor based in Hyogo, Japan. She has made significant contributions to the field of semiconductor technology, holding a total of 2 patents. Her innovative work has paved the way for advancements in electronic devices.
Latest Patents
Ritsuko Tsutsumi's latest patents include the development of a LOCOS type field isolating film and a semiconductor memory device formed. In her patent, a LOCOS isolation film is formed on a major surface of a semiconductor substrate. Following this, a new surface of the semiconductor substrate is exposed through wet etching. A resist pattern is then created on the newly exposed surface. A portion of the LOCOS isolation film is removed using this resist pattern, which exposes the surface of the semiconductor substrate. This unsymmetrical LOCOS isolation film enhances the effective area of the semiconductor substrate's surface while maintaining predetermined dielectric resistance.
Career Highlights
Ritsuko Tsutsumi is currently employed at Mitsubishi Electric Corporation, where she continues to innovate in the semiconductor field. Her work has been instrumental in developing technologies that improve the performance and efficiency of electronic devices.
Collaborations
Throughout her career, Ritsuko has collaborated with notable colleagues, including Ichiro Arimoto and Masami Yamamoto. These partnerships have contributed to her success and the advancement of semiconductor technology.
Conclusion
Ritsuko Tsutsumi is a trailblazer in semiconductor innovation, with her patents reflecting her expertise and dedication to the field. Her contributions continue to influence the development of advanced electronic devices.