Fabricação de via através de silício em dispositivos quânticos planares

    公开(公告)号:BR112021021816A8

    公开(公告)日:2022-01-18

    申请号:BR112021021816

    申请日:2020-03-20

    Applicant: IBM

    Abstract: fabricação de via através de silício em dispositivos quânticos planares. em uma primeira camada supercondutora (316) depositada em uma primeira superfície de um substrato (312), um primeiro componente de um ressonador é padronizado. em uma segunda camada supercondutora (326) depositada em uma segunda superfície do substrato (312), um segundo componente do ressonador é padronizado. a primeira superfície e a segunda superfície são dispostas em relação uma à outra em uma disposição não coplanar. no substrato, um recesso é criado, o recesso se estendendo da primeira camada supercondutora para a segunda camada supercondutora. em uma superfície interna do recesso, uma terceira camada supercondutora (322) é depositada, a terceira camada supercondutora formando um caminho supercondutor entre a primeira camada supercondutora e a segunda camada supercondutora. o excesso de material da terceira camada supercondutora é removido da primeira superfície e da segunda superfície, formando um uma via através de silício (tsv) completa(320).

    THERMALIZATION STRUCTURE FOR DEVICES COOLED TO CRYOGENIC TEMPERATURE

    公开(公告)号:SG11202110210PA

    公开(公告)日:2021-10-28

    申请号:SG11202110210P

    申请日:2020-05-13

    Applicant: IBM

    Abstract: A thermalization structure is formed using a foil and a low temperature device (LTD). The foil includes a first layer of a first material. The LTD includes a surface from which heat is transferred away from the LTD. A coupling is formed between the foil and the surface of the LTD, where the coupling includes a bond formed between the foil and the surface such that forming the bond forms a set of ridges in the foil, a ridge in the set of ridges operating to dissipate the heat.

    Through-silicon-via fabrication in planar quantum devices

    公开(公告)号:AU2020265711A1

    公开(公告)日:2021-09-30

    申请号:AU2020265711

    申请日:2020-03-20

    Applicant: IBM

    Abstract: On a first superconducting layer (316) deposited on a first surface of a substrate (312), a first component of a resonator is pattered. On a second superconducting layer (326) deposited on a second surface of the substrate (312), a second component of the resonator is patterned. The first surface and the second surface are disposed relative to each other in a non-co-planar disposition. In the substrate, a recess is created, the recess extending from the first superconducting layer to the second superconducting layer. On an inner surface of the recess, a third superconducting layer (322) is deposited, the third superconducting layer forming a superconducting path between the first superconducting layer and the second superconducting layer. Excess material of the third superconducting layer is removed from the first surface and the second surface, forming a completed through-silicon via TSV (320).

    Quantum code for reduced frequency collisions in qubit lattices

    公开(公告)号:AU2020262057A1

    公开(公告)日:2021-09-30

    申请号:AU2020262057

    申请日:2020-03-27

    Applicant: IBM

    Abstract: A quantum computer includes a quantum processor that includes a first plurality of qubits arranged in a hexagonal lattice pattern such that each is substantially located at a hexagon apex, and a second plurality of qubits each arranged substantially along a hexagon edge. Each of the first plurality of qubits is coupled to three nearest-neighbor qubits of the second plurality of qubits, and each of the second plurality of qubits is coupled to two nearest-neighbor qubits of the first plurality of qubits. Each of the second plurality of qubits is a control qubit at a control frequency. Each of the first plurality of qubits is a target qubit at one of a first target frequency or a second target frequency. The quantum computer includes an error correction device configured to operate on the hexagonal lattice pattern of the plurality of qubits so as to detect and correct data errors.

    QUANTUM CODE FOR REDUCED FREQUENCY COLLISIONS IN QUBIT LATTICES

    公开(公告)号:CA3137264A1

    公开(公告)日:2020-10-29

    申请号:CA3137264

    申请日:2020-03-27

    Applicant: IBM

    Abstract: A quantum computer includes a quantum processor that includes a first plurality of qubits arranged in a hexagonal lattice pattern such that each is substantially located at a hexagon apex, and a second plurality of qubits each arranged substantially along a hexagon edge. Each of the first plurality of qubits is coupled to three nearest-neighbor qubits of the second plurality of qubits, and each of the second plurality of qubits is coupled to two nearest-neighbor qubits of the first plurality of qubits. Each of the second plurality of qubits is a control qubit at a control frequency. Each of the first plurality of qubits is a target qubit at one of a first target frequency or a second target frequency. The quantum computer includes an error correction device configured to operate on the hexagonal lattice pattern of the plurality of qubits so as to detect and correct data errors.

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