PRINTING COMPLEX ELECTRONIC CIRCUITS

摘要

A programmable circuit includes an array of printed groups of microscopic transistors or diodes. The devices are pre-formed and printed as an ink and cured. The devices in each group are connected in parallel so that each group acts as a single device. In one embodiment, about 10 devices are contained in each group so the redundancy makes each group very reliable. Each group has at least one electrical lead that terminates in a patch area on the substrate. An interconnection conductor pattern interconnects at least some of the leads of the groups in the patch area to create logic circuits for a customized application of the generic circuit. The groups may also be interconnected to be logic gates, and the gate leads terminate in the patch area. The interconnection conductor pattern then interconnects the gates for form complex logic circuits.

主权项

1. A method for forming a circuit comprising:
providing an ink containing a plurality of pre-formed, semiconductor electrical devices mixed in a solvent, each of the devices having at least a first electrode and a second electrode; printing the ink, on a substrate, to form a plurality of separate groups of the pre-formed, semiconductor electrical devices, each group containing a plurality of substantially identical electrical devices forming a random two-dimensional arrangement of the electrical devices on the substrate; forming at least one conductor layer to connect the electrical devices in each group in parallel; and interconnecting at least some of the groups, using an interconnection pattern, to achieve an electrical function.