Company Filing History:
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2 out of 2 
1 out of 107 
Years Active: 2019-2025
Title: Dawei Liu: Innovator in Liquid Delivery Systems
Introduction
Dawei Liu is a prominent inventor based in Shanghai, China. He has made significant contributions to the field of liquid delivery systems, particularly in the semiconductor industry. With a total of 3 patents, Liu's work focuses on improving the efficiency and quality of wafer cleaning processes.
Latest Patents
Liu's latest patents include innovative methods and systems for controlling mixed liquids used in semiconductor manufacturing. One of his notable inventions is a method of controlling mixed liquid to be delivered for SPM solution. This method involves mixing sulfuric acid with hydrogen peroxide in a two-stage process, ensuring optimal oxygen concentration for effective cleaning. Another significant patent is a liquid delivering system for wafer cleaning equipment, which features a multi-stage mixing process and precise temperature control. This system enhances the quality and efficiency of cleaning wafers, meeting stringent industry requirements.
Career Highlights
Throughout his career, Dawei Liu has worked with reputable companies such as PNC Process Systems Co., Ltd. and Ultron Semiconductor (Shanghai) Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative solutions in liquid delivery systems.
Collaborations
Liu has collaborated with talented professionals in his field, including Zhengkai Lu and Ming Xu. These partnerships have contributed to the advancement of his inventions and the overall progress in semiconductor cleaning technologies.
Conclusion
Dawei Liu's contributions to the field of liquid delivery systems have made a significant impact on the semiconductor industry. His innovative patents and career achievements highlight his dedication to improving wafer cleaning processes. Liu continues to be a key figure in advancing technology in this critical area.