Chih-An Hsu

Title: Chih-An Hsu: Innovator in EUV Lithography

Introduction: Chih-An Hsu is a prominent inventor based in Santa Clara, CA. He has made significant contributions to the field of lithography, particularly in the area of extreme ultraviolet (EUV) lithography. His innovative approach has led to advancements that are crucial for the semiconductor industry.

Latest Patents: Chih-An Hsu holds a patent for a method and apparatus related to vacuum bake for EUV lithography. This patent describes a process for performing post-exposure bake operations. After the exposure of photoresist on a substrate, the substrate is heated during a baking process to facilitate the protection of the resist. The baking process is conducted in a vacuum environment at sub-atmospheric pressures. Following the baking at reduced pressure, the substrate is cooled, and this cooling process is also performed at sub-atmospheric pressures. Further development of the resist is carried out at ambient pressures. This innovative method enhances the efficiency and effectiveness of lithography processes.

Career Highlights: Chih-An Hsu is currently employed at Applied Materials, Inc., a leading company in the semiconductor manufacturing equipment industry. His work at Applied Materials has positioned him as a key player in advancing lithography technologies.

Collaborations: Chih-An Hsu collaborates with Huixiong Dai, a fellow innovator in the field. Their partnership has fostered a productive environment for research and development, leading to significant advancements in lithography techniques.

Conclusion: Chih-An Hsu's contributions to EUV lithography through his innovative patent and work at Applied Materials, Inc. highlight his importance in the semiconductor industry. His dedication to advancing technology continues to shape the future of lithography.