Synaptic transistor and preparation method thereof

Abstract

The invention provides a synaptic transistor and a preparation method thereof. The synaptic transistor comprises an insulating substrate, a channel material, a source electrode, a gate electrode and adrain electrode. The channel material, the source electrode, the gate electrode and the drain electrode are located on the substrate to form a planar three-terminal structure. The channel material isan amorphous carbon film. A channel region and part of a gate electrode region are covered with a solid electrolyte, and the solid electrolyte contains an organic matter carrier insulated from electrons, and movable ions. The synaptic transistor has the advantages of high stability, low power consumption and the like, and can be applied to neuromorphic devices. Moreover, the amorphous carbon filmis directly prepared on the substrate to form a channel, so that the preparation difficulty is reduced, and the preparation process is simplified. Large-scale integration of the synaptic transistor can be realized, and the synaptic transistor has a good application value.

Description

Technical field [0001] The invention relates to the field of semiconductor devices, in particular to a synaptic transistor and a preparation method thereof. Background technique [0002] In the era of big data, computers with traditional von Neumann architecture are difficult to handle the ever-increasing data and information. How to improve the efficiency of storage and computing has become a problem that humans have to solve. The human brain has the advantages of extremely high computing efficiency, low computing power consumption, and processing complex processes. At the same time, it has been found in physiological research that the completion of the brain's learning and memory functions is inseparable from synapses. Therefore, the development of new electronic devices with neurosynaptic functions is of great significance for realizing neuromorphic computing and meeting information processing needs. [0003] The synapse in the organism is the key to the exchange of information...

AI Technical Summary

Problems solved by technology

At the same time, the commonly used electrolyte is ionic liquid, which is not conducive to the stability of the device and subsequent integration.

[0005] At present, two-dimensional semiconductor materials are mainly prepared by mechanical exfoliation. The preparation process is complex and poorly controllable, which is not conducive to large-scale integration applications, and the prepared two-dimensional semiconductor materials need to be transferred to the substrate surface. On the one hand, the process steps are increased. On the other hand, it is easy to introduce impurities during the transfer process and easily lead to changes in the structure of semiconductor materials, which further increases the difficulty of large-scale integration.

[0006] Organic channel materials are physically and chemically unstable and incompatible with existing semiconductor processes

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