Company Filing History:
Years Active: 1990-1994
Title: Masaaki Yashiro: Innovator in Dynamic RAM Technology
Introduction
Masaaki Yashiro is a notable inventor based in Plano, TX (US). He has made significant contributions to the field of memory technology, particularly in dynamic RAM cells. With a total of 3 patents to his name, Yashiro's work has had a considerable impact on the electronics industry.
Latest Patents
One of Yashiro's latest patents is for a high-density dynamic RAM cell. The invention describes a memory cell and a method for fabricating that memory cell and memory array. The memory cell is a trench capacitor type, featuring a transistor formed on the surface of a substrate. A capacitor is formed in the substrate around the periphery of a trench, connecting the capacitor and transistor through a buried, heavily doped region. This innovative design includes a doped storage area surrounding the trench and a field plate formed in the trench, which provides isolation between memory cells while minimizing surface area usage. The self-aligned process used to form the source and drain for the pass gate transistor enhances the efficiency of the design.
Career Highlights
Masaaki Yashiro is currently employed at Texas Instruments Corporation, a leading company in semiconductor design and manufacturing. His work at Texas Instruments has allowed him to further develop his expertise in memory technology and contribute to cutting-edge innovations in the field.
Collaborations
Yashiro has collaborated with notable coworkers such as Clarence W. Teng and Shigeki Morinaga. These collaborations have likely enriched his work and led to advancements in the technologies he has developed.
Conclusion
Masaaki Yashiro is a distinguished inventor whose contributions to dynamic RAM technology have made a lasting impact on the electronics industry. His innovative designs and collaborations continue to shape the future of memory technology.