Non-crystalline silicon active device for large-scale digital and analog networks

摘要

A non-crystalline silicon--preferably a-Si:H--active device for use in a large-scale hardware implementation of an artificial neural network system having an analog and digital mixed morphology. A plurality of a- Si:H thin-film transistors (TFTs) implement addition, multiplication and weighting functionality and are arranged in a highly- connected morphology with other active and passive semiconductor elements. Electrical signals are selectively applied to metal plates and light- emitting devices in order to locally or globally alter the threshold characteristics of the TFTs.