Company Filing History:
Years Active: 1979-1986
Title: Harold D. Edmonds: Innovator in Semiconductor Technology
Introduction
Harold D. Edmonds is a notable inventor based in Hopewell Junction, NY (US). He has made significant contributions to the field of semiconductor technology, holding a total of 6 patents. His work focuses on innovative methods for analyzing and improving semiconductor wafers.
Latest Patents
One of his latest patents is a "Method for determining oxygen and carbon in silicon semiconductor wafer." This invention utilizes an infrared Fourier transform spectrometer to measure the absorbance spectrum of a sample with unknown oxygen or carbon content. The roughness of the wafer is defined from the spectrum, which is then used to calculate the oxygen or carbon content. The roughness can be determined by analyzing the slope of the absorbance spectrum or the degree of shift of the baseline of the oxygen or carbon peak.
Another significant patent is the "Dual mode spectrometer test station." This invention provides a new spectrometer station for semiconductor wafers that allows operation in both reflective and absorption modes, either simultaneously or sequentially, while the wafer remains in a horizontal position. The wafer is placed on a movable platform, with an infrared detector positioned underneath. An optical system above the platform focuses an interferometer beam on the wafer, allowing for detailed examination of any part of the wafer as a test point by the spectrometer.
Career Highlights
Harold D. Edmonds is currently associated with International Business Machines Corporation (IBM), where he continues to innovate in the semiconductor field. His work has been instrumental in advancing the technology used in semiconductor manufacturing and analysis.
Collaborations
He has collaborated with notable coworkers such as Gary Markovits and Murlidhar V. Kulkarni, contributing to various projects and innovations within the company.
Conclusion
Harold D. Edmonds stands out as a key figure in semiconductor technology, with a strong portfolio of patents that reflect his innovative spirit and dedication to advancing the field. His contributions continue to impact the industry significantly.