Shanghai, China

Dawei Liu

This inventor holds 3 USPTO granted patents and 1 EPO patent. Top assignees: Pnc Process Systems Co., Ltd., Ultron Semiconductor (Shanghai) Co., Ltd., Schneider Toshiba Inverter Europe Sas. Active years: 2019-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Dawei Liu. Retrieved from https://idiyas.com/inventor/dawei-liu-qi7qi3be

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

 

Average Co-Inventor Count = 5.3

ph-index = 1


Company Filing History:


Years Active: 2019-2025

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3 patents (USPTO):Explore Patents

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.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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