Back to results
US 11,115,027 B2Granted
Direct current powered clockless superconducting logic family using dynamic internal states
AssigneeInternational Business Machines Corporation
InventorSergey Rylov
Life of this patent
Estimating the term…
Abstract
Techniques regarding a DSFQ logic family are provided. For example, one or more embodiments described herein can comprise a system, which can comprise a dynamic single flux quantum logic circuit that has a self-resetting internal state and can be powered by direct current. Further, the self-resetting internal state can be characterized by two time constants.
Claims19
An apparatus, comprising:
- a first circuit branch comprising a first Josephson junction arranged in series with a resistor;
- a second circuit branch connected in parallel with the first circuit branch and comprising a second Josephson junction, wherein the first circuit branch is a dynamic circuit branch and wherein the second circuit branch is a static circuit branch;
- a superconducting inductor connected in series with a parallel connection of the first circuit branch and the second circuit branch;
- and
- an output port electrically biased by an energy-efficient rapid single flux quantum bias source comprised of a limiter Josephson Junction connected in series with a second inductor.
2 more elements
A method, comprising:
- forming a first circuit branch comprising a first Josephson junction arranged in series with a resistor;
- and
- forming a second circuit branch coupled with the first circuit branch and comprising a second Josephson junction, wherein the first circuit branch is a dynamic circuit branch and wherein the second circuit branch is a static circuit branch.
An apparatus, comprising:
- a first circuit branch comprising a first Josephson junction arranged in series with a resistor;
- and
- a second circuit branch coupled with the first circuit branch and comprising a second Josephson junction, wherein the first circuit branch is a dynamic circuit branch and wherein the second circuit branch is a static circuit branch.
Dependencies are inferred from the claim text.