Makoto Koto

Title: Innovations of Makoto Koto in Three-Dimensional Memory Devices

Introduction

Makoto Koto is a notable inventor based in Yokkaichi, Japan. He has made significant contributions to the field of memory devices, particularly in the development of three-dimensional memory technologies. With a total of 4 patents, Koto's work has advanced the capabilities of memory storage solutions.

Latest Patents

Koto's latest patents include innovative designs for three-dimensional memory devices. The first patent describes a three-dimensional memory device with drain-select-level isolation structures and a method of making the same. This device features an alternating stack of insulating layers and electrically conductive layers over a substrate, with memory pillar structures that include memory films and vertical semiconductor channels. The design aims to minimize the area occupied by the drain-select-level isolation structure while maintaining efficiency.

The second patent focuses on a three-dimensional memory device containing a direct source contact structure and methods for making the same. This invention involves forming a source-level sacrificial layer and an alternating stack of insulating and sacrificial material layers over a substrate. The process includes creating memory openings and a source cavity, followed by the deposition of a memory film and the formation of vertical semiconductor channels.

Career Highlights

Makoto Koto is currently employed at Sandisk Technologies Inc., where he continues to innovate in the field of memory technology. His work has been instrumental in pushing the boundaries of what is possible in three-dimensional memory devices.

Collaborations

Koto has collaborated with notable coworkers such as Yoshitaka Otsu and Satoshi Shimizu. Their combined expertise has contributed to the successful development of advanced memory technologies.

Conclusion

Makoto Koto's contributions to three-dimensional memory devices exemplify the innovative spirit of modern inventors. His patents reflect a commitment to enhancing memory technology, paving the way for future advancements in the field.