Company Filing History:
Years Active: 2004-2005
Title: Makoto Dei: Innovator in Semiconductor Memory Technology
Introduction
Makoto Dei is a prominent inventor based in Hyogo, Japan, known for his contributions to semiconductor memory technology. With a total of 2 patents, he has made significant advancements in the field, particularly in the design and functionality of memory devices.
Latest Patents
One of his latest patents is for a semiconductor memory device that features a capacitor storing charges as binary information and an access transistor that controls the input and output of these charges. This innovative design eliminates the need for refresh cycles, enhancing the efficiency of memory storage. The device includes a capacitor with a storage node positioned above a semiconductor substrate, which holds charges corresponding to logical levels of stored binary information. Additionally, an access transistor is located on the semiconductor substrate surface, managing the input and output of charges accumulated in the capacitor, while a latch circuit maintains the potential of the capacitor storage node.
Another notable patent by Makoto Dei is for a static type semiconductor memory device. This memory cell includes a gate electrode of an MOS transistor formed on the main surface of a semiconductor substrate via an insulator film. The design features an interlayer insulator film that covers the gate electrode, along with a set of contact holes that reach a source and a drain located on either side of the gate electrode. The innovative aspect of this design is that the space between contact holes in the interlayer insulator film is smaller than the space between contact holes on the surface of the interlayer insulator film, optimizing the device's performance.
Career Highlights
Makoto Dei is currently employed at Renesas Technology Corporation, where he continues to push the boundaries of semiconductor technology. His work has been instrumental in developing advanced memory solutions that cater to the growing demands of modern electronics.
Collaborations
Throughout his career, Makoto has collaborated with notable colleagues, including Yasuhiro Fujii and Tsuyoshi Koga. These partnerships have fostered innovation and contributed to the success of various projects within the semiconductor industry.
Conclusion
Makoto Dei's contributions to semiconductor memory technology have established him as a key figure in the field. His innovative patents and ongoing work at Renesas Technology Corporation highlight his commitment to advancing technology and improving memory device performance.