The ability to cut heat-sensitive polymers with minimum kerf width and low HAZ, and at high speeds, is critical for many industrial applications. In this work, we investigate the benefits of using high-power femtosecond UV lasers in processing polymer materials, which are commonly used for OLED displays and flexible circuit boards manufacturing. In particular, we present a study on the impact of the processing conditions on the throughput and quality of laser cutting of polyimide (PI), polyethylene terephthalate (PET) and polytetrafluoroethylene (PTFE) polymers as well as OLED display multi-layer polymer film stacks.
|