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High-Quality Cutting of Thin Polymer Films with a High-Power Femtosecond UV Laser

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High-Quality Cutting of Thin Polymer Films with a High-Power Femtosecond UV Laser

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Polymers are increasingly being used in various technology sectors such as OLED displays, flexible circuit boards, microelectronics, medical devices, batteries, etc. They often possess excellent thermal and electrical insulating properties, high strength, and resistance to corrosion. Three such polymers used in many applications are polyimide (PI), polyethylene terephthalate (PET) and polytetrafluoroethylene (PTFE), which is commonly known by the trade name Teflon®. With its high mechanical strength as well as good chemical and heat resistance, PI continues to be a mainstay in the flexible printed circuit board (FPCB) market, serving as a robust dielectric material to manage the flow of electrical current.

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