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Useful details on fab side: the material is indium-gallium-zinc oxide deposited onto a flexible polyimide substrate using the fab-in-a-box manufacturing system (https://www.youtube.com/watch?v=D9A2yYZ-NAI)

>Thin-film material deposition is achieved through a combination of physical-vapour deposition, atomic-layer deposition and solution-processing (for example, spin-coating). Substrate processing conditions have been carefully optimized to minimise film stress and substrate bow. Feature patterning is achieved using a photolithographic 5× stepper tool.

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