pvdf organic polymer film capacitor

Abstract

The invention discloses a PVDF organic polymer film capacitor, which is characterized in that the device structure comprises: a substrate; a metal bottom electrode grown on the substrate; a dielectric insulating layer, the dielectric insulating layer It is a hole type, and part of the metal bottom electrode is wrapped; an organic polymer film, the organic polymer film grows at the opening of the dielectric insulating layer, and the area is slightly larger than the opening area; a metal upper electrode, the metal upper electrode grows On the organic polymer film; a wrapping electrode, the wrapping electrode is grown on the metal upper electrode, and wraps the organic polymer film and the metal upper electrode. The device structure of the present invention uses a dielectric layer to isolate the upper and lower electrodes, uses the upper electrode as a PVDF film photolithography mask, and finally uses the wrapped electrode to protect the side of the PVDF organic polymer film, which facilitates the implementation of subsequent traditional processes and makes it compatible with The integrated preparation of other devices is not limited by traditional processes.

Description

technical field [0001] This patent relates to electronic component technology, and specifically refers to a PVDF organic polymer film capacitor. Background technique [0002] In recent years, organic polymer thin films have attracted widespread attention due to their excellent electrical properties, simple process, low cost, and compatibility with various organic and inorganic substrates. They have moved from material research to the preparation of various organic devices. It is already comparable to inorganic materials. At the same time, it has huge potential applications in the fields of display, radio frequency identification system, smart card storage, etc., and promotes the generation of active circuits on organic substrates. [0003] The preparation method of organic polymer films is completely different from that of inorganic films. At present, the preparation of organic polymer films mainly adopts two processes: first, sol-gel method or LB film and other processes, ...

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Problems solved by technology

[0005] The purpose of this patent is to overcome the problem that PVDF polymer films cannot be photolithographically used in the existing PVDF capacitor device technology, and propose a photolithographic preparation technology for PVDF organic polymer film capacitors. This PVDF organic polymer capacitor structure can solve the problem of capacitors. Edge breakdown effect, and integration with subsequent photolithography processes, facilitating integration with other devices

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