Superconducting flux storage structure, data read / write characterization method and memory

CN115223610BActive Publication Date: 2026-04-03SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-07-13
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing technologies make it difficult to perform high-speed (picosecond-level) signal sampling on superconducting storage devices at room temperature, and testing equipment is unable to effectively characterize the high-speed data read and write performance of superconducting storage devices.

Method used

A superconducting flux storage structure is adopted, including a flux storage module and a flux readout module. By using first and second superconducting loops and coils, the writing and reading of flux quanta are realized by adjusting the current, enabling operation, and combined with a superconducting quantum interference device for signal reading and writing characterization.

Benefits of technology

It enables high-speed data writing and reading of superconducting memory devices at room temperature, lowers the threshold for testing equipment, enables picosecond-speed signal sampling, and improves the performance of superconducting memory.

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Abstract

This invention provides a superconducting flux storage structure, a data read / write characterization method, and a memory, comprising at least a flux storage module and a flux readout module. The flux storage module includes a first superconducting loop and a first superconducting coil. The first superconducting loop includes a first Josephson junction coupled to the first superconducting coil. The flux readout module includes a second superconducting loop and a second superconducting coil coupled to the second superconducting coil. The second superconducting loop includes a second Josephson junction and a third Josephson junction. This invention enables high-speed data writing and reading at room temperature, effectively lowering the testing threshold for testing equipment, achieving picosecond-speed signal sampling, and greatly improving the performance of superconducting storage.
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