Donald K Umemoto

Title: The Innovative Contributions of Donald K. Umemoto

Introduction

Donald K. Umemoto is a prominent inventor based in Manhattan Beach, California. He has made significant contributions to the field of integrated circuit technology, holding a total of 8 patents. His work focuses on advanced methods for fabricating multifunction integrated circuit devices, which are crucial for modern electronics.

Latest Patents

Among his latest patents is a method of fabricating monolithic multifunction integrated circuit devices. This innovative method involves selective molecular beam epitaxy for creating integrated circuit devices on a common substrate. The process includes depositing a profile layer of one of the devices on an appropriate substrate, followed by the application of a dielectric layer. The layers are then etched to define device profiles, allowing for the integration of multiple device types on a single substrate. Another notable patent is for high-frequency GaAs substrate-based Schottky barrier diodes. This invention utilizes HBT active device layers and features a vertically integrated profile on a GaAs substrate, enhancing performance through reduced series resistance.

Career Highlights

Donald K. Umemoto has had a distinguished career at TRW Limited, where he has been instrumental in advancing integrated circuit technologies. His expertise in semiconductor devices has positioned him as a key figure in the industry, contributing to various innovative projects.

Collaborations

Throughout his career, Umemoto has collaborated with notable colleagues, including Dwight C. Streit and Aaron K. Oki. These partnerships have fostered a collaborative environment that has led to groundbreaking advancements in their field.

Conclusion

Donald K. Umemoto's contributions to the field of integrated circuits and semiconductor technology are noteworthy. His innovative patents and collaborative efforts have significantly impacted the industry, showcasing his dedication to advancing technology.