1. Control Scheme for Rapidly Responding Register Controller Using Response Acceleration Input in Industrial Roll-To-Roll Manufacturing Systems
- Author
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Jongsu Lee, Hoeryong Jung, and Kee-Hyun Shin
- Subjects
Scheme (programming language) ,Mathematical model ,Computer science ,Control engineering ,Roll-to-roll processing ,Acceleration ,Register (music) ,Control and Systems Engineering ,Control theory ,Control system ,Electronics ,Electrical and Electronic Engineering ,computer ,computer.programming_language - Abstract
A roll-to-roll (R2R) manufacturing system has been considered the most suitable candidate for commercializing flexible electronic devices owing to its large-area and mass-production characteristics. A high-precision register control should be ensured when fabricating devices using the R2R system. Contrary to conventional manufacturing systems that are applied to rigid materials, the control target in an R2R system is a flexible film that can lead to a substantial time delay in the control response and degrade the register control performance. This paper proposes a novel control scheme, namely response acceleration input, to provide a rapid response in the register control of flexible substrates. Mathematical models to achieve the proposed scheme were developed. A register control system based on the developed models was designed, followed by experimental verifications using an industrial-scale R2R system. The results show that the register error is successively controlled below 10 m with a high yield of over 80% for 1800 s. We believe that the proposed control strategy can realize a high-precision register control below 10 m in industrial-scale R2R manufacturing systems, thus enabling the commercialization of multilayered, flexible electronic devices.
- Published
- 2022