Patent ID: 11955465
Assignee: GOOGLE LLC
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 9:
10. A device comprising:
a first chip comprising a qubit, and
a second chip bonded to the first chip, the second chip comprising a substrate including first and second opposing surfaces, the first surface facing the first chip, wherein the second chip further comprises:
a single superconductor layer directly on the first surface of the substrate, the single superconductor layer defining at least one circuit element on the first surface of the substrate, wherein the at least one circuit element on the first surface of the substrate comprises a qubit readout resonator, and wherein there is no deposited dielectric material on the surface of the qubit readout resonator that faces the first chip;
a plurality of layers on the second surface of the substrate,
wherein the plurality of layers comprise at least one dielectric layer and at least one additional superconductor layer,
wherein the plurality of layers on the second surface of the substrate define at least one circuit element on the second surface of the substrate; and
a connector that extends from the first surface of the substrate to the second surface of the substrate and electrically connects a first circuit element on the first surface of the substrate to a first circuit element on the second surface of the substrate.