Patent ID: 11910730
Assignee: ALIBABA GROUP HOLDING LIMITED
Field: nan (nan)
Classification: CPC H | IPC H

Claim 16:
17. A superconducting circuit, comprising:
a Josephson junction used as a nonlinear inductance element, wherein the Josephson junction is generated by a method, the method comprising:
acquiring a substrate structure; and
forming a first electrode layer on the substrate structure, forming an insulating layer on the first electrode layer, and forming a second electrode layer on the insulating layer, wherein the first electrode layer and the second electrode layer are composed of a preset material, the insulating layer is composed of a compound corresponding to the preset material, and the preset material comprises a non-aluminum superconducting material to prolong a coherence time of superconducting qubits, and wherein:
an arrangement of the insulating layer between the first electrode layer and the second electrode layer forms the Josephson junction, and
forming the second electrode layer on the insulating layer comprises forming a continuous bridge structure comprising:
a first end formed on the insulating layer,
a second end formed on the substrate structure, and
a middle sub-electrode between the first and send ends, the middle sub-electrode being disposed over and forming an air gap from the substrate structure.