Company Filing History:
Years Active: 2020-2022
Title: Naoto Hojo: Innovator in Three-Dimensional Memory Devices
Introduction
Naoto Hojo is a prominent inventor based in Yokkaichi, Japan. He has made significant contributions to the field of memory devices, holding a total of 6 patents. His innovative work focuses on the development of advanced three-dimensional memory technologies.
Latest Patents
Hojo's latest patents include groundbreaking inventions such as a three-dimensional memory device that incorporates locally thickened electrically conductive layers. This invention outlines methods for fabricating a three-dimensional memory device by forming an alternating stack of insulating layers and sacrificial material layers over a substrate. The process involves creating stepped surfaces through patterning the alternating stack and forming sacrificial pads on exposed horizontal surfaces. After the formation of memory stack structures, the sacrificial materials can be replaced with electrically conductive layers, which are designed with thicker end portions to enhance performance.
Another notable patent is for a multi-tier three-dimensional memory device that features dielectric support pillars. This invention describes a multi-tier memory array consisting of multiple vertically stacked alternating stacks of insulating and electrically conductive layers. The memory stack structures extend through these stacks, and the invention emphasizes the importance of structural support during the replacement of sacrificial materials with conductive layers.
Career Highlights
Naoto Hojo is currently employed at SanDisk Technologies Inc., where he continues to push the boundaries of memory technology. His work has been instrumental in advancing the capabilities of three-dimensional memory devices, making them more efficient and reliable.
Collaborations
Throughout his career, Hojo has collaborated with talented individuals such as Yoshitaka Otsu and Kei Nozawa. These collaborations have fostered an environment of innovation and creativity, leading to the development of cutting-edge technologies in the field.
Conclusion
Naoto Hojo's contributions to the field of three-dimensional memory devices are noteworthy and impactful. His innovative patents and collaborations highlight his dedication to advancing technology in this critical area. His work continues to influence the future of memory devices, paving the way for new advancements.