| 초록 |
In this research, a continuous roll-to-roll screen printing system was developed using a flat screen. It has a newly devised sliding mechanism of screen printing module, which can be controlled accurately in sync with a moving web, driven by a roll-to-roll tension control and web-guiding system. In addition, the real-time precision alignment module that consists of a vision camera and an $X-Y-{ theta}$ alignment stage was implemented. With this developed system, the feasibility of continuous printing with minimum pattern width below $60{ mu}m$ was verified, and an overlay of ${ pm}60{ mu}m$ between the laser-patterned reference mark and the printed mark on a 300-mm-wide film was achieved. |
