Three-terminal full-control-type switch element based on resistance-variation material and preparation method thereof

Abstract

The invention discloses a three-terminal full-control-type switch element based on a resistance-variation material. The element comprises three connection terminals and a resistance-variation film, wherein the three connection terminals comprise a positive pole, a negative pole and a gate pole; the positive pole and the negative pole are located on the same plane; the gate pole and the positive pole / negative pole are located on the different planes and are isolated by the resistance-variation film; the variation of the resistance between the positive pole and the negative pole is achieved under the excitation of a gate pole control terminal voltage, thus excellent switch characteristics are exhibited, and the switching ratio of the switch element reaches 6 magnitude orders; and the switchelement has a memory characteristic, and the switching state of the switch element is still maintained after the excitation of the gate pole control terminal voltage is removed. The electronic switchelement has the advantages of simple structure, low manufacturing cost, rapid response speed (nanosecond order) and large switching ratio, has the memory characteristics and can be used as a basic composition element of devices such as a logic gate circuit, an analog multi-path switch, a memory, a thin film transistor and the like. The invention also discloses a preparation method of the three-terminal full-control-type switch element based on the resistance-variation material.

Description

technical field [0001] The invention relates to the field of electronic switches, and belongs to the field of thin film electronic switches, in particular to a three-terminal full-control switch element based on a resistive material. Background technique [0002] A switch acts as an on-signal or off-signal in a circuit. The most common switch is a relay, which operates in a high-current, high-voltage mode, but has a slow response. The other type is semiconductor switches, including bipolar transistor switches and field effect transistor switches, which work in small current, low voltage, and high-speed places. In recent years, resistive switching materials have been extensively studied because of their unique electrical properties. Resistive switching materials can be switched between a high resistance state and a low resistance state under the excitation of signals such as an electric field. Using this principle, different voltages can be applied to it to enter different...

AI Technical Summary

Problems solved by technology

However, the two-terminal switch can only be used as an overload protection device of the circuit, and the application area is narrow

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