Integrated a-Si:H/pentacene inorganic/organic complementary circuits

We have developed a low-cost fabrication process for complementary circuits using integrated organic and inorganic thin film transistors (TFTs). In these circuits, a-Si:H TFTs are used as the n-channel and pentacene organic TFTs as the p-channel devices. These circuits show high switching gain and excellent logic level conservation, with very low off-currents during static operation. Gate delay of our circuits, measured using ring oscillators, is as low as 5 /spl mu/s, the fastest speed reported for circuits using organic transistors.