DEVICE, METHOD AND COMPUTER SYSTEM FOR CONTROLLING THE VOLTAGE-DEPENDENT RESISTANCE IN A METAL OXIDE UNIT

By applying predetermined voltages to individual filament segments in layered metal oxide structures, the system dynamically controls resistance, addressing inefficiencies in existing methods and reducing power consumption in memristive devices.

DE102021130398B4Active Publication Date: 2026-06-18INTERNATIONAL BUSINESS MACHINE CORPORATION
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
INTERNATIONAL BUSINESS MACHINE CORPORATION
Filing Date
2021-11-22
Publication Date
2026-06-18

AI Technical Summary

Technical Problem

Existing systems lack efficient and cost-effective methods for controlling voltage-dependent resistance in metal oxide units, particularly in memristive devices, which limits the resistance range and increases power consumption.

Method used

A system and method involving a computer system connected to a device with electrodes and layered metal oxide structures, applying predetermined voltages to control individual filament segments within the layers to adjust resistance dynamically, extending the resistance range from 100 ohms to 10,000 ohms.

Benefits of technology

This approach enhances resistance control, reduces power consumption, and provides cost-effective management of voltage-dependent resistance in memristive devices by tuning filament layers, improving the efficiency of neural network synaptic connections.

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Abstract

Device (106) for controlling the voltage-dependent resistance, comprising: at least two electrodes (202, 204) at closely spaced endpoints; a first layer (210) applied to the at least two electrodes (202, 204), wherein the first layer consists of a metal oxide; a second layer (208) applied to the first layer (210), wherein the second layer (208) consists of an electrically conductive metal oxide; a forming contact (206) applied to the second layer (208), wherein a combination of the forming contact (206), the first layer (210) and the second layer (208) functionally connects the at least two electrodes (202, 204) to each other; and a computer system functionally connected to the educational contact, wherein the computer system (102) is designed to apply a predetermined voltage to the first layer (210) and to the second layer (208) respectively, and to display an increase in the total resistance using a user interface.
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