Abstract:Roll-to-Roll manufacturing aims at scaling ultraviolet-and thermally cured nanoimprint lithography (UV-NIL, T-NIL) to commercial production speeds and volumes. Winding is the only convenient way of storing large quantities of nanoimprinted webs as they await unwinding in sequential R2R processes with distinct transport speeds. At production speeds, the imprinted resin is still chemically evolving when the imprinted web enters the winder, through a phenomenon called dark curing. The viscoelastic resin at variou… Show more
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