Company Filing History:
Years Active: 2012
Title: **Sihai Cao: Innovator in Metal Optical Grayscale Mask Technology**
Introduction
Sihai Cao is an accomplished inventor based in Beijing, China, recognized for his contributions to optical technologies. With a keen focus on enhancing manufacturing methods, Cao's innovations aim to advance the field of micro-optical components and micro-electro-mechanical systems.
Latest Patents
Cao holds a patent for a breakthrough invention titled "Metal Optical Grayscale Mask and Manufacturing Method Thereof." This invention features a metal optical grayscale mask that incorporates a layer of metal film deposited on a transparent substrate. The transparency pattern is created through laser writing on the surface of the metal film, offering both array and random pattern options. The grayscale range falls within 3.0 OD to 0.05 OD, with the metal film thickness ranging from 5 to 100 nm. The manufacturing method, which involves a straightforward semiconductor rinse process followed by film deposition and laser writing, emphasizes cost-effectiveness, excellent antistatic properties, and resolution that surpasses the optical diffraction limit. This innovative mask supports wide applications in various micro-optical components and facilitates large-scale production for micro-electro-mechanical systems.
Career Highlights
Sihai Cao is a key figure at the National Center for Nanoscience and Technology, where he conducts advanced research in nanotechnology and its applications in optics. His work not only simplifies the manufacturing processes but also enhances the performance of optical devices, making significant contributions to both industry and research.
Collaborations
Cao collaborates with esteemed colleagues, including Chuanfei Guo and Qian Jack Liu, which fosters an environment of innovation and knowledge sharing. These partnerships play a crucial role in the development and refinement of cutting-edge technologies in nanoscience and optics.
Conclusion
Sihai Cao's innovative work in metal optical grayscale masks positions him as a notable inventor in the field of optics. His patented technology showcases a blend of practicality and efficiency, paving the way for advancements in the production of micro-optical components and systems. As he continues to collaborate with fellow researchers, Cao's contributions will likely drive further innovations in nanotechnology and optical engineering.