Company Filing History:
Years Active: 2001-2003
Title: Innovations of Wonhui Cho
Introduction
Wonhui Cho is an accomplished inventor based in Cedar Park, TX (US). He has made significant contributions to the field of process detection, particularly in chemical-mechanical polishing operations. With a total of 2 patents, his work showcases innovative methods and apparatuses that enhance efficiency and accuracy in various processes.
Latest Patents
Cho's latest patents include a "Method and apparatus for detecting a process endpoint." This invention involves receiving a first data signal and a second data signal, which are then combined to generate a combined data signal. The method detects a peak in the combined data signal, indicating the process endpoint. The apparatus consists of a data collection unit and a signal analysis unit, which work together to analyze the data signals and identify the process endpoint effectively.
Another notable patent is the "Method and apparatus for detecting the endpoint of a chemical-mechanical polishing operation." This invention modifies a chemical-mechanical polishing tool to receive and combine data signals, allowing for the detection of a peak that signifies the process endpoint. The method includes analyzing the data signal to determine high and low values, estimating the endpoint process, and filtering out subsequent peaks to identify the remaining peak as the process endpoint.
Career Highlights
Wonhui Cho is currently employed at Advanced Micro Devices Corporation, where he continues to innovate and contribute to advancements in technology. His expertise in process detection has positioned him as a valuable asset in his field.
Collaborations
Throughout his career, Cho has collaborated with notable colleagues, including Peter J Beckage and Keith A Edwards. These collaborations have further enriched his work and contributed to the development of innovative solutions in process detection.
Conclusion
Wonhui Cho's contributions to the field of process detection through his patents and work at Advanced Micro Devices Corporation highlight his innovative spirit and dedication to advancing technology. His inventions are paving the way for more efficient processes in various applications.