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Organic thin film transistors, unipolar inverters and ring oscillators have been fabricated on plastic foil and afterwards embedded into a plastic substrate by using an injection molding process. The transistors have an effective field-effect mobility of 0.001 cm 2 V −1 s -1 , an on/off ratio of 10 5 and threshold voltage V th of 0.5 V while the inverter shows a gain of 1.6 at V dd =−10 V. The five-stage ring oscillator showed an oscillation frequency of ∼11 Hz at V dd =−10 V. The results demonstrate the transfer of organic electronic devices fabricated on plastic foil onto the surface of a 3D plastic object by using injection molding process, one of the most common modern methods of part manufacturing.

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