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Large [[Integrated circuit|circuit]]s made with [[thin-film transistor]]s and other devices can be [[pattern]]ed onto these large substrates, which can be up to a few metres wide and 50 km long.{{cn|date=March 2017}} Some of the devices can be patterned directly, much like an [[inkjet printer]] deposits ink. For most [[semiconductor]]s, however, the devices must be patterned using [[photolithography]] techniques.
Roll-to-roll processing of large-area electronic devices reduces manufacturing cost.<ref>{{cite book|url=https://books.google.com/books?id=ZiGjrlkSpOQC&pg=PA19&lpg=PA19&dq=%22web+processing%22+%22Roll+to+roll%22&source=bl&ots=cKLMNnpKYw&sig=BJcY7byhE38jDUuCKOUHNca2hdo&hl=en&sa=X&ved=0ahUKEwi4r6W5noXZAhUUzGMKHfhlDe0Q6AEIbTAP#v=onepage&q=%22web%20processing%22%20%22Roll%20to%20roll%22&f=false|title=Flexible Electronics: Materials and Applications|chapter=Fabrication on Web by Roll-to-Roll Processing|page=19|editors=Wong, William S., and Salleo, Alberto|publisher=Springer|place=New York, NY|year=2009|isbn=0387743634}}</ref> Most notable would be [[solar cell]]s, which are still prohibitively expensive for most markets due to the high cost per unit area of traditional bulk ([[Monocrystalline silicon|mono-]] or [[Polycrystalline silicon|polycrystalline]]) silicon manufacturing. Other applications could arise which take advantage of the flexible nature of the substrates, such as electronics embedded into clothing, large-area flexible displays, and [[rollable display | roll-up portable displays]].
=== Thin-film cells ===
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*[[Roll-to-roll electronics inkjet printer]]
*[[Thin film solar cell]]
* [[web (manufacturing)| web manufacturing]]
==References==
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