Patent ID: 11950510
Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC H  F  Y | IPC H

Claim 17:
18. A method of forming a superconductor junction, the method comprising:
providing a normal metal layer having a first side and a second side;
disposing an insulating layer over the second side of the normal metal layer;
disposing a first superconductor layer formed of a first superconductor material with a first side over a side of the insulating layer opposite the side that overlies the normal metal layer;
disposing a second superconductor layer formed of a second superconductor material with a first side over a side of the first superconductor layer opposite the side that overlies the insulating layer, the second superconductor material has a higher diffusion coefficient than the first superconductor material and/or the second superconductor material has a lower recombination coefficient than the first superconductor layer, wherein the first superconductor layer has a thickness of about 1 coherence length to about 3 coherence lengths associated with the first superconductor material and the second superconductor layer has a thickness of at least 4 coherence lengths associated with the second superconductor material; and
coupling a normal metal layer quasiparticle trap to a second side of the second superconductor layer with or without a normal metal bump bond.