Masahiko Urai

Title: Masahiko Urai: Innovator in Semiconductor Technology

Introduction

Masahiko Urai is a prominent inventor based in Nara, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 2 patents. His work focuses on innovative solutions for isolating semiconductor devices and enhancing semiconductor memory.

Latest Patents

Urai's latest patents include an isolator designed for electrically isolating semiconductor devices. This isolator is characterized by walls of a trench formed on the top surface of a semiconductor substrate, which is filled with a silicon oxide layer deposited through a chemical vapor deposition method. Additionally, a small ditch created in the middle of the silicon oxide layer is filled with silicon, which is thermally oxidized to form another silicon oxide layer.

Another notable patent involves a semiconductor memory that features a plurality of memory cells. Each memory cell consists of a single capacitor and a single transistor for storing one bit of information. The design allows for the terminals of the transistors to be commonly connected to a wiring portion, with the capacitor disposed in a trench formed along the outer periphery of the semiconductor substrate.

Career Highlights

Masahiko Urai is associated with Sharp Kabushiki Kaisha Corporation, where he has been instrumental in advancing semiconductor technologies. His innovative designs have contributed to the efficiency and performance of semiconductor devices.

Collaborations

Urai has collaborated with notable colleagues, including Katsuji Iguchi and Akio Kawamura. Their combined expertise has fostered advancements in semiconductor technology and innovation.

Conclusion

Masahiko Urai's contributions to semiconductor technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence the development of advanced semiconductor devices and memory solutions.