David Lee Windt

Title: **David Lee Windt: Innovator in Optical Lithography and Multilayer Film Technology**

Introduction

David Lee Windt, an accomplished inventor based in Berkeley Heights, New Jersey, has made significant contributions to the fields of optical lithography and multilayer film technology. With a portfolio of 2 patents, Windt has demonstrated his innovative prowess and commitment to advancing technological processes.

Latest Patents

Among his latest patents is a groundbreaking process for device fabrication using a variable transmission aperture. This process employs optical lithography to create an image of a desired pattern in an energy-sensitive material. The innovation involves a filter element with at least two regions of varying transmittance, allowing for precise control of the lithographic process. By modeling the effects of each aperture on the intensity profile, Windt’s work enables the design of filter elements that produce features with dimensions that meet strict process tolerances.

Another notable patent focuses on controlling the stress of multilayer films formed on a substrate. This method involves creating multiple periods, each consisting of layers that exhibit compressive and tensile stress to achieve a targeted overall stress level in the multilayer film. The thickness of each layer, ranging from approximately 0.5 nm to 10 nm, is meticulously selected to ensure the desired mechanical properties, achieving stress levels between -50 MPa and 50 MPa. Additionally, his invention includes masks with these multilayer films, showcasing his innovative approach to film stress management.

Career Highlights

Throughout his career, David Lee Windt has been associated with prestigious companies such as AT&T Corporation and Lucent Technologies Inc. His experience in these organizations has enriched his knowledge and expertise in technology development, particularly in areas related to telecommunications and advanced manufacturing processes.

Collaborations

Windt has collaborated with noteworthy colleagues in the industry, including Lloyd R. Harriott and James Alexander Liddle. These partnerships have fostered a creative environment that has allowed for significant advancements in the respective fields they work in, combining their individual expertise to drive innovation.

Conclusion

David Lee Windt's dedication to innovation in optical lithography and multilayer film technology exemplifies the impact that inventors can have on technology and industry. His patents not only showcase his technical skills but also highlight his role in shaping modern manufacturing techniques. As he continues to push boundaries in his field, Windt remains a vital figure in the landscape of American innovation.