Superconducting Computer Memory
Case ID:
TEC2012-0109
Web Published:
6/7/2016
Executive Summary
Large-scale supercomputing installations use a tremendous amount of power. An attractive alternative would be to develop superconducting computing, which would operate at cryogenic temperatures. While superconducting logic circuits exist, a serious bottleneck is the lack of a superconducting computer memory. A high-density, high-speed, ultra-low power, cryogenic computer memory is needed for use in conjunction with superconducting computer logic circuits. Our solution is a unique memory cell architecture that provides for a practical solution to superconducting computer memory.
Description of Technology
Michigan State University has developed a Josephson magnetic memory system. The system includes a superconducting electrode that conducts a read current. The system utilizes a hysteretic magnetic Josephson junction that can store a binary value and convert superconducting pairs associated with the read current from a singlet-state to a triplet-state. A write circuit is magnetically coupled to the Josephson junction and configured to write the binary value in response to at least one write current and a read circuit configured to determine the binary value stored.
Key Benefits
- Ultra-low power used within the memory cell
- Compatible with cryogenic systems
- Superconducting components have zero electrical resistance
Applications
Patent Status:
US Patent 9,013,916 jointly owned with Northrup Grumman
Licensing Rights Available
Non-exclusive licensing rights available
MSU Inventors: Norman Birge
Tech ID: TEC2012-0109
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For Information, Contact:
Raymond Devito
Technology Manager
Michigan State University
devitora@msu.edu
