Memory cell comprising coupled Josephson junctions
Abstract
Methods and apparatus are disclosed for operating a memory cell formed from the plurality of coupled Josephson junctions. The memory cell is configured such that applying an electrical signal to the junctions can cause at least one, but not all, of the junctions to change their respective phase states. Subsequent writes to the memory cell using substantially the same electrical pulse do not change the phase state of the plurality of junctions. The memory cell can be ready by providing another electrical pulse to one of the junctions and receiving an output electrical pulse generated in response by a different Josephson junction of the memory cell. A set of phase states are selected to represent the logic values that are stable across anticipated operating conditions for the memory cell. Methods of selecting electrical parameters and manufacturing memory cells are further disclosed.
- Inventors:
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1600435
- Patent Number(s):
- 10516089
- Application Number:
- 15/726,173
- Assignee:
- UT-Battelle, LLC (Oak Ridge, TN); University of Tennessee Research Foundation (Knoxville, TN)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
G - PHYSICS G11 - INFORMATION STORAGE G11C - STATIC STORES
- DOE Contract Number:
- AC05-00OR22725
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 10/05/2017
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 97 MATHEMATICS AND COMPUTING
Citation Formats
Braiman, Yehuda, Imam, Neena, and Neschke, Brendan. Memory cell comprising coupled Josephson junctions. United States: N. p., 2019.
Web.
Braiman, Yehuda, Imam, Neena, & Neschke, Brendan. Memory cell comprising coupled Josephson junctions. United States.
Braiman, Yehuda, Imam, Neena, and Neschke, Brendan. Tue .
"Memory cell comprising coupled Josephson junctions". United States. https://www.osti.gov/servlets/purl/1600435.
@article{osti_1600435,
title = {Memory cell comprising coupled Josephson junctions},
author = {Braiman, Yehuda and Imam, Neena and Neschke, Brendan},
abstractNote = {Methods and apparatus are disclosed for operating a memory cell formed from the plurality of coupled Josephson junctions. The memory cell is configured such that applying an electrical signal to the junctions can cause at least one, but not all, of the junctions to change their respective phase states. Subsequent writes to the memory cell using substantially the same electrical pulse do not change the phase state of the plurality of junctions. The memory cell can be ready by providing another electrical pulse to one of the junctions and receiving an output electrical pulse generated in response by a different Josephson junction of the memory cell. A set of phase states are selected to represent the logic values that are stable across anticipated operating conditions for the memory cell. Methods of selecting electrical parameters and manufacturing memory cells are further disclosed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 24 00:00:00 EST 2019},
month = {Tue Dec 24 00:00:00 EST 2019}
}
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