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公开(公告)号：US12267070B2
公开(公告)日：2025-04-01
申请号：US18416806
申请日：2024-01-18
Applicant: PsiQuantum Corp.
Inventor： Faraz Najafi
IPC: H03K19/195 , H03K19/17728 , H03K19/17736 , H03K19/17784
Abstract: The various embodiments described herein include methods, devices, and systems for operating superconducting circuitry. In one aspect, a programmable circuit includes a configurable superconducting component and control circuitry coupled to the configurable superconducting component. The superconducting component includes an input terminal, an output terminal, and a plurality of gate terminals. The control circuitry is coupled to the superconducting component via the plurality of gate terminals. The control circuitry is adapted to selectively transition portions of the superconducting component from a superconducting state to a non-superconducting state. The control circuitry is configured to operate the superconducting component in a first configuration in which the programmable circuit is configured to perform a first function. The control circuitry is further configured to operate the superconducting component in a second configuration in which the programmable circuit is configured to perform a second function, distinct from the first function.
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公开(公告)号：US12253483B1
公开(公告)日：2025-03-18
申请号：US18110848
申请日：2023-02-16
Applicant: PsiQuantum Corp.
Inventor： Faraz Najafi , Chia-Jung Chung
IPC: G01N23/207 , H10N60/01
Abstract: The various embodiments described herein include methods for manufacturing superconductor devices. A method for manufacturing superconductors may include: (i) generating spectra data from a first superconductor device; (iii) identifying a first peak ratio between a first phase peak and a second phase peak in the spectra data; (iv) generating additional spectra data from a second superconductor device; (v) identifying a second peak ratio of the additional spectra data from the second superconductor device; (vi) adjusting a manufacturing parameter based on the first peak ratio and the second peak ratio; and (vii) manufacturing a third superconductor device based on the adjusted manufacturing parameter.
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公开(公告)号：US12176672B2
公开(公告)日：2024-12-24
申请号：US17239085
申请日：2021-04-23
Applicant: Psiquantum, Corp.
Inventor： Eric Dudley , Yong Liang , Faraz Najafi , Vimal Kamineni , Ann Melnichuk
Abstract: An optical device includes a substrate, a dielectric layer on the substrate, a waveguide within the dielectric layer, a light sensitive component (e.g., a photodetector) in the dielectric layer and coupled to the waveguide, and a plurality of light isolation structures in at least one of the substrate or the dielectric layer and configured to prevent stray light from reaching the light sensitive component. In some embodiments, a light isolation structure in the plurality of light isolation structures includes two opposing sidewalls and a filling material between the two opposing sidewalls. The two opposing sidewalls include an optical isolation layer. The filling material is characterized by a coefficient of thermal expansion (CTE) matching a CTE of at least one of the substrate or the dielectric layer.
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公开(公告)号：US20240410749A1
公开(公告)日：2024-12-12
申请号：US18669307
申请日：2024-05-20
Applicant: PsiQuantum Corp.
Inventor： Faraz Najafi , Eric Dudley , Mark Thompson
Abstract: A method of resolving a number of photons received by a photon detector includes optically coupling a waveguide to a superconducting wire having alternating narrow and wide portions; electrically coupling the superconducting wire to a current source; and electrically coupling an electrical contact in parallel with the superconducting wire. The electrical contact has a resistance less than a resistance of the superconducting wire while at least one narrow portion of the superconducting wire is in a non-superconducting state. The method includes providing to the superconducting wire, from the current source, a current configured to maintain the superconducting wire in a superconducting state in the absence of incident photons; receiving one or more photons via the waveguide; measuring an electrical property of the superconducting wire, proportional to a number of photons incident on the superconducting wire; and determining the number of received photons based on the electrical property.
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公开(公告)号：US12119820B2
公开(公告)日：2024-10-15
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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Patent Agency Ranking
公开(公告)号：US20240339978A1
公开(公告)日：2024-10-10
申请号：US18745713
申请日：2024-06-17
Applicant: PSIQUANTUM CORP.
Inventor： Faraz Najafi , Syrus Ziai , Qiaodan Jin Stone
Abstract: An example single photon detector includes a thin sheet of superconducting material connected to a current source to receive a small current generated from detection one or more photons, the thin sheet of superconducting material connected to a ground, the thin sheet of superconducting material further connected to an amplifying current source to receive a larger current that is larger than the small current. The example detector further includes an asymmetric arrangement of nanowires, the asymmetric arrangement of nanowires comprising three or more differently sized nanowires that are arranged in the thin sheet in a sequence from smallest to largest such that the asymmetric arrangement of nanowires are triggered in the sequence in response to the small current. The example detector also includes an output to output current from the amplifying current source in response to the asymmetric arrangement of nanowires being triggered.
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公开(公告)号：US20240334846A1
公开(公告)日：2024-10-03
申请号：US18385296
申请日：2023-10-30
Applicant: PsiQuantum Corp.
Inventor： Faraz Najafi
IPC: H10N60/84 , G01J1/42 , G01J1/44 , H01L29/43 , H01L29/786 , H01L31/00 , H01L31/0224 , H01L31/113 , H10N60/10 , H10N60/20 , H10N60/30 , H10N60/35
CPC classification number: H10N60/84 , G01J1/44 , H01L29/437 , H01L29/78645 , H01L31/00 , H01L31/022408 , H01L31/1136 , H10N60/128 , H10N60/207 , H10N60/30 , H10N60/35 , G01J1/42 , G01J2001/442 , G01J2001/446 , G01J2001/4473
Abstract: The various embodiments described herein include methods, devices, and systems for fabricating and operating transistors. In one aspect, a transistor includes: (1) a semiconducting component configured to operate in an on state at temperatures above a semiconducting threshold temperature; and (2) a superconducting component configured to operate in a superconducting state while: (a) a temperature of the superconducting component is below a superconducting threshold temperature; and (b) a first current supplied to the superconducting component is below a current threshold; where: (i) the semiconducting component is located adjacent to the superconducting component; and (ii) in response to a first input voltage, the semiconducting component is configured to generate an electromagnetic field sufficient to lower the current threshold such that the first current exceeds the lowered current threshold, thereby transitioning the superconducting component to a non-superconducting state.
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公开(公告)号：US20240260484A1
公开(公告)日：2024-08-01
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：US12015383B2
公开(公告)日：2024-06-18
申请号：US17150889
申请日：2021-01-15
Applicant: PSIQUANTUM CORP.
Inventor： Faraz Najafi , Syrus Ziai , Qiaodan Jin Stone
Abstract: A system includes a plurality of superconducting wires connected in parallel with one another. The plurality of superconducting wires includes a first superconducting wire and a second superconducting wire. The plurality of superconducting wires are configured to, while receiving a bias current provided to the parallel combination of the plurality of superconducting wires, operate in a superconducting state in the absence of a trigger current. The first superconducting wire is configured to, while receiving the bias current, transition to a non-superconducting state in response to receiving the trigger current. The second superconducting wire is configured to, while receiving the bias current, transition to a non-superconducting state in response to the first superconducting wire transitioning to the non-superconducting state.
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公开(公告)号：US11988554B2
公开(公告)日：2024-05-21
申请号：US18103413
申请日：2023-01-30
Applicant: PsiQuantum Corp.
Inventor： Faraz Najafi , Eric Dudley , Mark Thompson
CPC classification number: G01J1/44 , G01J1/0407 , G01J2001/4446
Abstract: A method of resolving a number of photons received by a photon detector includes optically coupling a waveguide to a superconducting wire having alternating narrow and wide portions; electrically coupling the superconducting wire to a current source; and electrically coupling an electrical contact in parallel with the superconducting wire. The electrical contact has a resistance less than a resistance of the superconducting wire while at least one narrow portion of the superconducting wire is in a non-superconducting state. The method includes providing to the superconducting wire, from the current source, a current configured to maintain the superconducting wire in a superconducting state in the absence of incident photons; receiving one or more photons via the waveguide; measuring an electrical property of the superconducting wire, proportional to a number of photons incident on the superconducting wire; and determining the number of received photons based on the electrical property.
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