William H Lancaster, Jr

Title: Innovations of William H Lancaster, Jr.

Introduction

William H Lancaster, Jr. is a notable inventor based in Tucson, AZ (US). He has made significant contributions to the field of dimensional measurement and defect detection. His innovative approach has implications for various manufacturing processes, particularly in the optical disk and microchip industries.

Latest Patents

William H Lancaster, Jr. holds a patent for an "Interferometric dimensional measurement and defect detection method." This invention utilizes an AC interferometer to detect both surface topography and the presence of defects. The method enhances surface topography measurements by adjusting the signal voltage of the light modulator to a relative phase-sensitive value. Additionally, defect detection is optimized by setting the signal voltage to a relatively phase-insensitive value. This dual capability allows for rapid observations across multiple points of a specimen, making it highly suitable for manufacturing environments.

Career Highlights

Lancaster is associated with International Business Machines Corporation, commonly known as IBM. His work at IBM has allowed him to develop and refine his innovative methods, contributing to advancements in manufacturing technology.

Collaborations

One of his notable collaborators is Murlidhar V Kulkarni. Their partnership has likely fostered further innovations and improvements in their respective fields.

Conclusion

William H Lancaster, Jr. exemplifies the spirit of innovation through his patented methods that enhance manufacturing processes. His contributions continue to influence the industry and pave the way for future advancements.