This inventor holds 2 USPTO granted patents. Top assignee: Kla Tencor Corporation. Active years: 1998-1999.
Company Filing History:
Years Active: 1998-1999
Title: Joseph R. Carter: Innovator in Optical Measurement Systems
Introduction
Joseph R. Carter is a notable inventor based in San Jose, California. He has made significant contributions to the field of optical measurement systems, holding a total of 2 patents. His work focuses on improving the accuracy and efficiency of optical devices, which are essential in various scientific and industrial applications.
Latest Patents
One of Joseph's latest patents is an "Apodizing filter system useful for reducing spot size in optical." This invention addresses the diffraction effects caused by slits or apertures in optical measurement systems. By employing an apodizing filter in the radiation path, the diffraction tails of the system can be reduced, leading to more precise measurements. The filter features a pattern of alternating high transmittance areas and substantially opaque areas, with a locally averaged transmittance function that varies smoothly from the periphery to the center.
Another significant patent is the "Film measurement system with improved calibration." This invention tackles the issue of pixel position-to-wavelength calibration shifts in film measurement devices, such as spectroscopic ellipsometers and spectroreflectometers. By utilizing one or more wavelength markers provided by the light source or reference sample, the calibration function can be corrected to account for shifts caused by temperature, humidity changes, and mechanical factors.
Career Highlights
Joseph R. Carter is currently employed at Kla Tencor Corporation, where he continues to innovate in the field of optical measurement. His work has been instrumental in enhancing the performance of various optical devices, making them more reliable and accurate for users in different industries.
Collaborations
Joseph has collaborated with several talented individuals, including Adam Eales Norton and Kenneth C. Johnson. These collaborations have contributed to the advancement of technology in optical measurement systems.
Conclusion
Joseph R. Carter is a distinguished inventor whose work in optical measurement systems has led to significant advancements in the field. His innovative patents reflect his commitment to improving measurement accuracy and efficiency.