Multi-valued capacitor with memory function

Abstract

The invention discloses a multi-valued capacitor with a memory function, which comprises a first electrode, a second electrode, a phase change layer, a first multi-valued regulation and control assembly and a second multi-valued regulation and control assembly, and is characterized in that the first multi-valued regulation and control assembly comprises a third electrode and a first regulation and control conductor, and the second multi-valued regulation and control assembly comprises a fourth electrode and a second regulation and control conductor; the first regulation and control conductor and the second regulation and control conductor construct a plurality of point positions, the point positions carry out phase change regulation and control on a specific area, a continuously adjustable effective dielectric constant is obtained by controlling the size of the area of the phase change area, and the memory of capacitance values and non-volatile continuous adjustability of a plurality of capacitance values are achieved. According to the multi-valued capacitor with the memory function, phase change regulation and control are carried out on the specific area on the phase change layer through the point positions, thermally induced phase change or electrically induced phase change of different point positions is achieved, continuous and adjustable phase change layer effective dielectric constants are obtained by controlling the size of the area of the phase change area, And the memory of the capacitor on the capacitance value and the non-volatile continuous adjustability of the capacitance value are realized.

Description

technical field [0001] The present invention relates to a capacitor, in particular to a multi-valued capacitor with memory function. Background technique [0002] Capacitors are widely used in the microelectronics industry, and adjustable capacitors are also widely used. Traditional mechanical adjustable capacitors are bulky, difficult to integrate, and have limited applications. Most of the integrated adjustable capacitors are volatile. When the external physical stimulation signal is removed, the capacitance value will return to the initial state. It has no memory function and is not conducive to reducing power consumption. Traditional non-volatile capacitors generally have only two capacitance values ​​or a few capacitance values, which is limited by the number of different phases of the phase change material. If an integrated non-volatile multi-value capacitor can be realized, or the capacitance value can be continuously adjusted non-volatile according to needs, it will...

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