Location History:
- Guangdong, CN (2019 - 2021)
- Guangzhou, CN (2023)
Company Filing History:
Years Active: 2019-2025
Title: Chengqiang Cui: Innovator in Nano Metal Technologies
Introduction
Chengqiang Cui is a prominent inventor based in Guangdong, China. He has made significant contributions to the field of nano metal technologies, holding a total of 5 patents. His work focuses on innovative methods for preparing nano metal pastes and interconnect structures for semiconductors.
Latest Patents
Chengqiang Cui's latest patents include two notable inventions. The first is a method for preparing a nano metal paste, which involves several steps. Initially, an organic metallic salt and an organic reducing agent are added into water or an organic solvent to create a first mixture. This mixture is then reacted under heating to yield a second mixture containing metal nanoparticles. The second mixture is concentrated to produce a nano metal paste that contains 20-95% by weight of the metal nanoparticles. Additionally, this patent provides for a conductive paste and a conductive ink that utilize the nano metal paste as a filler.
The second patent pertains to an interconnect structure for semiconductors with an ultra-fine pitch. This application focuses on semiconductor manufacturing and outlines a forming method that includes preparing copper nanoparticles using a vapor deposition device. The coupling parameters of the vapor deposition device are adjusted to control the initial particle size of the copper nanoparticles. The process continues with the deposition of these nanoparticles on a substrate, followed by the placement of a chip with copper pillars as I/O ports on the substrate. Finally, the chip and substrate undergo hot-pressing sintering to enable bonding.
Career Highlights
Chengqiang Cui is affiliated with the Guangdong University of Technology, where he continues to advance his research and innovations in the field of nano technologies. His work has garnered attention for its practical applications in electronics and materials science.
Collaborations
Chengqiang collaborates with notable colleagues, including Yu Zhang and Xin Chen, who contribute to his research endeavors and innovations.
Conclusion
Chengqiang Cui is a leading figure in the development of nano metal technologies, with a focus on practical applications in semiconductor manufacturing. His innovative patents reflect his commitment to advancing the field and contributing to technological progress.