Location History:
- Tsuchiura, JP (1991)
- Avezzanoa, IT (1994)
Company Filing History:
Years Active: 1991-1994
Title: Shigeki Morinaga: Innovator in Dynamic RAM Technology
Introduction
Shigeki Morinaga is a notable inventor based in Tsuchiura, Japan. He has made significant contributions to the field of memory technology, particularly in dynamic RAM cells. With a total of 2 patents to his name, Morinaga's work has had a lasting impact on the industry.
Latest Patents
One of Morinaga's latest patents is focused on 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
Morinaga is currently employed at Texas Instruments Corporation, where he continues to develop cutting-edge technologies in memory systems. His expertise in dynamic RAM technology has positioned him as a key player in the field.
Collaborations
Throughout his career, Morinaga has collaborated with notable coworkers such as Masaaki Yashiro and Clarence W. Teng. These collaborations have further enriched his contributions to the field of memory technology.
Conclusion
Shigeki Morinaga's innovative work in dynamic RAM technology exemplifies the importance of advancements in memory systems. His patents and contributions continue to influence the industry, showcasing his role as a leading inventor in this vital area of technology.