Company Filing History:
Years Active: 2017
Title: Dennis L. Ohren: Innovator in Optical Systems
Introduction
Dennis L. Ohren is a notable inventor based in Victoria, MN (US). He has made significant contributions to the field of optical systems, particularly in the inspection of semiconductor devices. With a focus on innovation, he has been instrumental in developing technologies that enhance the precision and efficiency of optical inspections.
Latest Patents
Dennis L. Ohren holds a patent for an "On-axis focus sensor and method." This invention involves a focus height sensor in an optical system designed for the inspection of semiconductor devices. The system includes a sensor beam source that emits a beam of electromagnetic radiation. A reflector receives this beam and directs it toward the surface of a semiconductor device positioned within the optical system's field of view. The reflector is strategically placed to capture a portion of the beam reflected back from the semiconductor surface, directing it to a sensor. This sensor then outputs a signal that correlates to the position of the surface along the optical axis, enhancing the accuracy of inspections.
Career Highlights
Throughout his career, Dennis has worked with Rudolph Technologies, Inc., where he has applied his expertise in optical systems. His innovative approach has led to advancements in the inspection processes used in semiconductor manufacturing. His work has not only improved the quality of inspections but has also contributed to the overall efficiency of production lines.
Collaborations
Dennis has collaborated with several talented individuals in his field, including Christopher J. Voges and Andrew E. Rotering. These collaborations have fostered an environment of innovation and have led to the development of cutting-edge technologies in optical inspection.
Conclusion
Dennis L. Ohren's contributions to the field of optical systems and semiconductor inspection are noteworthy. His patent for the on-axis focus sensor exemplifies his commitment to innovation and precision in technology. Through his work at Rudolph Technologies, Inc., he continues to influence the industry positively.