Location History:
- Dayton, OH (US) (1977)
- Escondido, CA (US) (1978)
- Colorado Springs, CO (US) (1977 - 1979)
Company Filing History:
Years Active: 1977-1979
Title: Tuh-Kai Koo: Innovator in Semiconductor Technology
Introduction
Tuh-Kai Koo is a prominent inventor based in Colorado Springs, CO (US). He has made significant contributions to the field of semiconductor technology, holding a total of 5 patents. His innovative work focuses on enhancing the functionality and efficiency of semiconductor devices.
Latest Patents
One of Tuh-Kai Koo's latest patents is for a solid-state tunable capacitor. This invention describes a semiconductor tunable capacitor that employs multiple metal-insulator-semiconductor (MIS) capacitive segments. Each segment has a first and a second value of capacitance. The solid-state capacitor features several tuning terminals and a single capacitor terminal. Tuning signals are applied to each tuning terminal to switch the capacitive segment between its high and low capacitive states. The capacitor terminal is capacitively connected to each segment, summing the individual capacitance values into a total capacitance value. An MNOS capacitor is presented as the preferred embodiment.
Another notable patent is related to a method of processing semiconductors. This improvement in the prior art method for processing large-scale integrated (LSI) semiconductors involves an etching procedure that is performed earlier in the process. This change helps to prevent damage to the wafer's surface where active devices are formed. The novel method allows for the removal of undesired field oxide before the circuits or active devices are fully formed, enabling the wafer to be completely immersed in the etchant without risking damage to the active portions.
Career Highlights
Tuh-Kai Koo is currently employed at NCR Corporation, where he continues to innovate in the semiconductor field. His work has significantly impacted the efficiency and reliability of semiconductor devices.
Collaborations
Throughout his career, Tuh-Kai Koo has collaborated with notable colleagues, including Peter C. Chen and John K. Stewart, Jr. These collaborations have further enhanced his contributions to the field.
Conclusion
Tuh-Kai Koo is a distinguished inventor whose work in semiconductor technology has led to multiple patents and advancements in the industry. His innovative approaches continue to shape the future of semiconductor devices.