In order to simplify the design and to further improve the integration, programmable, three-dimensional circuits are required alongside the development of fine process technology. We demonstrate the operation of programmable logic gates using organic ferroelectrics. Three-dimensionally stacked organic ferroelectric capacitors were assembled, which form logic elements with two inputs and one output. By controlling the directions of the electric dipoles, we have demonstrated the logical "and" and "or" operations using our device.
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