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Flexible OLED Manufacturing with High Power Femtosecond Laser

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Flexible OLED Manufacturing with High Power Femtosecond Laser

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Flexible OLED structure consists of a multilayer stack of functional materials deposited on heat sensitive plastic films such as Polyimide (PI) and Polyethylene Terephthalate (PET) (see Figure 1). The different thermal and optical properties of these films makes these stacks difficult to machine using conventional laser sources. Femtosecond lasers are capable of machining plastic materials with very minimal heat affected zone (HAZ) and very precise control of the material removal. Although the processing quality achieved meets industrial demands, processing speed needs to be improved to satisfy an industrial user. To process parts quickly and cost-effectively a femtosecond laser system with high average power is required. Additionally, the laser system has to be robust and stable to sustain the demands of the production floor. The Spirit® 1030-100-SHG laser from Spectra-Physics

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