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公开(公告)号：US12264961B2
公开(公告)日：2025-04-01
申请号：US17940882
申请日：2022-09-08
Applicant: PsiQuantum Corp.
Inventor： Chia-Jung Chung , Faraz Najafi , George Kovall , Vitor R. Manfrinato , Vimal Kamineni , Mark Thompson , Syrus Ziai
Abstract: A superconductor device includes a barrier layer over a substrate including silicon, the barrier layer including silicon and nitrogen, and a seed layer for a superconductor layer over the barrier layer, the seed layer including aluminum and nitrogen, and superconductor layer over the seed layer, the superconductor layer including a layer of a superconductor material, the barrier layer serving as an oxidation barrier between the layer superconductor material and the substrate. In some embodiments, the superconductor device includes a waveguide and a metal contact at a sufficient distance from the waveguide to prevent optical coupling between the metal contact and the waveguide.
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公开(公告)号：US12261604B2
公开(公告)日：2025-03-25
申请号：US18439641
申请日：2024-02-12
Applicant: PSIQUANTUM CORP.
Inventor： Faraz Najafi , Qiaodan Jin Stone
IPC: H03K19/195 , G01J1/44 , H10N60/30 , H10N60/84
Abstract: An example circuit includes a superconducting component having a plurality of narrow portions and a plurality of wide portions. The example circuit further includes a plurality of photon detector components, each photon detector component coupled to a corresponding narrow portion of the plurality of narrow portions and configured to provide an output that causes the corresponding narrow portion to transition from a superconducting state to a non-superconducting state. The example circuit also includes an output component coupled to the superconducting component, the output component configured to determine a number of the plurality of narrow portions of the superconducting component that are in the non-superconducting state.
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公开(公告)号：US12245524B2
公开(公告)日：2025-03-04
申请号：US18632077
申请日：2024-04-10
Applicant: PsiQuantum Corp. , Government of the United States of America, as Represented by the Secretary of Commerce
Inventor： Faraz Najafi , Qiaodan Jin Stone , Adam Nykoruk McDaughan
Abstract: An example electric circuit includes a superconductor component having a first terminal at a first end and a second terminal at a second end. The superconductor component includes a first portion coupled to the first terminal, a second portion coupled to the second terminal, and a third portion coupling the first portion and the second portion. The third portion has a curved shape such that the first portion of the superconductor component is proximate to, and thermally coupled to, the second portion of the superconductor component. The example electric circuit further includes a coupling component coupled to the third portion of the superconductor component, and a gate component configured to generate a resistive heat that exceeds a superconducting threshold temperature of the superconductor component, where the gate component is separated from the superconductor component by the coupling component.
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公开(公告)号：US12239029B2
公开(公告)日：2025-02-25
申请号：US18520462
申请日：2023-11-27
Applicant: PsiQuantum Corp.
Inventor： Faraz Najafi
Abstract: A device includes a superconductor layer and a piezoelectric layer positioned adjacent to the superconductor layer. The piezoelectric layer is configured to apply a first strain to the superconductor layer in response to receiving a first voltage that is below a predefined voltage threshold and to apply a second strain to the superconductor layer in response to receiving a second voltage that is above the predefined voltage threshold. While the device is maintained below a superconducting threshold temperature for the superconductor layer and is supplied with current below a superconducting threshold current for the superconductor layer, the superconductor layer is configured to 1) operate in a superconducting state when the piezoelectric layer applies the first strain to the superconductor layer and 2) operate in an insulating state when the piezoelectric layer applies the second strain to the superconductor layer.
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公开(公告)号：US20240357946A1
公开(公告)日：2024-10-24
申请号：US18520462
申请日：2023-11-27
Applicant: PsiQuantum Corp.
Inventor： Faraz Najafi
Abstract: A device includes a superconductor layer and a piezoelectric layer positioned adjacent to the superconductor layer. The piezoelectric layer is configured to apply a first strain to the superconductor layer in response to receiving a first voltage that is below a predefined voltage threshold and to apply a second strain to the superconductor layer in response to receiving a second voltage that is above the predefined voltage threshold. While the device is maintained below a superconducting threshold temperature for the superconductor layer and is supplied with current below a superconducting threshold current for the superconductor layer, the superconductor layer is configured to 1) operate in a superconducting state when the piezoelectric layer applies the first strain to the superconductor layer and 2) operate in an insulating state when the piezoelectric layer applies the second strain to the superconductor layer.
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Patent Agency Ranking
公开(公告)号：US11994428B1
公开(公告)日：2024-05-28
申请号：US18110851
申请日：2023-02-16
Applicant: PsiQuantum Corp.
Inventor： Faraz Najafi
CPC classification number: G01J1/44 , G01J1/0407 , H03K17/941 , G01J2001/442 , G01J2001/4446
Abstract: A photon detecting component is provided. The photon detecting component includes a first waveguide and a detecting section. The detecting section includes a second waveguide; a detector, optically coupled with the second waveguide, configured to detect one or more photons in the second waveguide; an optical switch configured to provide an optical coupling between the first waveguide and the second waveguide when the detector is operational; and an electrical switch electrically coupled to the detector, wherein the electrical switch is configured to change state in response to the detector detecting one or more photons. The photon detecting component further includes readout circuitry configured to determine a state of the electrical switch of the detecting section.
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公开(公告)号：US20240096799A1
公开(公告)日：2024-03-21
申请号：US18518394
申请日：2023-11-22
Applicant: PsiQuantum Corp.
Inventor： Faraz Najafi , Vitor Riseti Manfrinato
IPC: H01L23/528 , H10N60/83 , H10N69/00
CPC classification number: H01L23/5283 , H10N60/83 , H10N69/00 , H01L23/53285
Abstract: A superconducting circuit includes a photon detector component, a second component, and a multi-taper superconducting connector shaped to reduce current crowding, the superconducting connector electrically connecting the photon detector component and the second component. The multi-taper superconducting connector includes a first taper arranged adjacent the photon detector component and a second taper arranged adjacent the second component.
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公开(公告)号：US20240080029A1
公开(公告)日：2024-03-07
申请号：US18387402
申请日：2023-11-06
Applicant: PsiQuantum Corp.
Inventor： Faraz Najafi , Qiaodan Jin Stone
IPC: H03K19/195 , G01J1/44 , H10N60/30 , H10N60/84
CPC classification number: H03K19/195 , G01J1/44 , H10N60/30 , H10N60/84 , G01J2001/442
Abstract: A programmable circuit includes a superconducting multi-dimensional array. The programmable circuit further includes a plurality of photon detectors coupled to respective portions of the superconducting multi-dimensional array, each photon detector configured to selectively provide input to a corresponding respective portion sufficient to transition the corresponding respective portion from a superconducting state to a non-superconducting state. The programmable circuit also includes one or more electrical terminals coupled to respective second portions of the superconducting multi-dimensional array.
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公开(公告)号：US11832532B2
公开(公告)日：2023-11-28
申请号：US16798195
申请日：2020-02-21
Applicant: PsiQuantum Corp.
Inventor： Faraz Najafi
Abstract: A device includes a superconductor layer and a piezoelectric layer positioned adjacent to the superconductor layer. The piezoelectric layer is configured to apply a first strain to the superconductor layer in response to receiving a first voltage that is below a predefined voltage threshold and to apply a second strain to the superconductor layer in response to receiving a second voltage that is above the predefined voltage threshold. While the device is maintained below a superconducting threshold temperature for the superconductor layer and is supplied with current below a superconducting threshold current for the superconductor layer, the superconductor layer is configured to 1) operate in a superconducting state when the piezoelectric layer applies the first strain to the superconductor layer and 2) operate in an insulating state when the piezoelectric layer applies the second strain to the superconductor layer.
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公开(公告)号：US11830811B2
公开(公告)日：2023-11-28
申请号：US17408309
申请日：2021-08-20
Applicant: PsiQuantum Corp
Inventor： Faraz Najafi , Vitor Riseti Manfrinato
IPC: H01L23/528 , H10N60/83 , H10N69/00 , H01L23/532 , H10N60/84 , H10N60/85
CPC classification number: H01L23/5283 , H10N60/83 , H10N69/00 , H01L23/53285 , H10N60/84 , H10N60/855
Abstract: A superconducting circuit includes a first component having a first connection point. The first connection point has a first width. The superconducting circuit includes a second component having a second connection point. The second connection point has a second width that is larger than the first width. The superconducting circuit includes a superconducting connector shaped to reduce current crowding. The superconducting connector electrically connects the first connection point and the second connection point. The superconducting connector includes a first taper positioned adjacent the first connection point and having a non-linear shape and a second taper positioned adjacent the second connection point.
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