一种整流器及其使用方法

By using a rectifier with a ferroelectric domain wall structure, the ferroelectric layer and electrode layer form or break conductive channels under different voltages, which solves the shortcomings of existing rectifiers in high-frequency and high-current applications, realizes efficient rectification function, and expands the application range of rectifiers.

CN114695651BActive Publication Date: 2026-07-17HUAWEI TECH CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Filing Date
2020-12-31
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing silicon-based PN junction rectifiers have low operating current and low operating frequency, resulting in poor flexibility. Schottky barrier rectifiers have low reverse breakdown voltage and high reverse leakage current, leading to poor performance of rectifiers in high-frequency and high-current applications.

Method used

The rectifier, which employs a ferroelectric layer and electrode layer structure, utilizes the unidirectional conductivity of the ferroelectric domain walls to form a conductive channel when an AC signal greater than a preset voltage is applied, thereby achieving high-current and high-frequency rectification. When the voltage is less than the preset voltage, the conductive channel is disconnected, thus expanding the operating voltage range.

Benefits of technology

It achieves high current and high frequency rectification, is suitable for high voltage and high frequency applications, and is simple to manufacture and flexible to use, thus expanding the application range of rectifier tubes.

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Abstract

一种整流器及其使用方法。所述整流器包括铁电层和设置于所述铁电层之上分离设置的第一电极和第二电极。所述整流器用于在所述第一电极和所述第二电极被施加大于第一预设电压的交流信号时,在所述铁电层的第一畴部和第二畴部的畴壁间形成导电通道,以使得所述大于所述第一预设电压的交流信号通过所述导电通道被输出。其中,所述第一畴部为所述铁电层中位于所述第一电极和所述第二电极之间的区域,所述第二畴部为所述铁电层中除所述第一畴部之外的其他区域。
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