公开(公告)号：US20250166988A1

公开(公告)日：2025-05-22

申请号：US18954217

申请日：2024-11-20

Applicant: Psiquantum, Corp.

Inventor： Yong Liang ,  Ann Melnichuk

IPC: H01L21/02 ,  H01L21/683

Abstract: A wafer comprises: a silicon layer; a silicon nitride layer on the silicon layer wherein the silicon nitride layer defines one or more gaps between regions of the silicon nitride layer; and silicon dioxide disposed within the one or more gaps and having a top surface coplanar with a top surface of the silicon nitride layer.

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

IPC: G01J1/02 ,  G01J1/44 ,  H01B12/06

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.

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.

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

IPC: H01F6/04 ,  H10N60/30 ,  H10N60/84

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.

公开(公告)号：US12242167B2

公开(公告)日：2025-03-04

申请号：US18394124

申请日：2023-12-22

Applicant: Psiquantum, Corp.

Inventor： Albert Wang

IPC: G02F1/35 ,  G01J1/04 ,  G01J1/42 ,  G01J1/44 ,  G06F1/06 ,  G06N10/00 ,  H03K3/38 ,  H03K3/42

Abstract: A system for generating clock signals for a photonic quantum computing system includes a first pump photon source, a first photon-pair source optically coupled to the first pump photon source, and a first photodetector optically coupled to the first photon-pair source. The system also includes a first clock generator electrically coupled to the first photodetector, a second pump photon source, a second photon-pair source optically coupled to the second pump photon source, and a second photodetector optically coupled to the second photon-pair source. The system further includes a second clock generator electrically coupled to the second photodetector and a clock mediator coupled to the first clock generator and the second clock generator.

公开(公告)号：US20250068001A1

公开(公告)日：2025-02-27

申请号：US18943708

申请日：2024-11-11

Applicant: PsiQuantum Corp.

Inventor： Chia-Ming Chang

IPC: G02F1/01 ,  G02F1/19

Abstract: The various embodiments described herein include a phase shifter that can have a first electrode that has a distributed shape. The phase shifter can include a second electrode. The phase shifter can include an optical waveguide between the first electrode and the second electrode. Further, the phase shifter can include an active electro-optical material that propagates light, and phase shifts the light.

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

IPC: H01L39/10 ,  H01L41/04 ,  H10N60/01 ,  H10N60/30 ,  H10N60/84 ,  H10N60/85

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.

公开(公告)号：US20250053843A1

公开(公告)日：2025-02-13

申请号：US18722551

申请日：2022-12-23

Applicant: Psiquantum, Corp.

Inventor： Mihir Pant

IPC: G06N10/40 ,  H04B10/29 ,  H04B10/70

Abstract: A quantum repeater circuit can include a resource state interconnect circuit that outputs one resource state per clock cycle, with each resource state having a number of entangled qubits. The circuit can also include circuits and delay lines to perform entangling measurement operations on qubits of resource states generated by the same resource state generator in different clock cycles. The circuit can be operated as a quantum repeater that receives an encoded logical qubit and produces a reduced-noise version of the encoded logical qubit.

公开(公告)号：US12198926B2

公开(公告)日：2025-01-14

申请号：US17377135

申请日：2021-07-15

Applicant: Psiquantum, Corp.

Inventor： Yong Liang ,  Ann Melnichuk

IPC: H01L21/02 ,  H01L21/683

Abstract: In some embodiments a method comprises depositing a first silicon nitride layer on a top surface of a semiconductor wafer and forming one or more first gaps in the first silicon nitride layer. The one or more first gaps can relieve stress formed in the first silicon nitride layer. A first fill material is deposited on the first silicon nitride layer and the first silicon nitride layer is planarized. A second silicon nitride layer is deposited across the first silicon nitride layer and one or more second gaps are formed in the second silicon nitride layer. The one or more second gaps can relieve stress formed in the second silicon nitride layer. A second fill material is deposited across the second silicon nitride layer and the second silicon nitride layer is planarized.

公开(公告)号：US12189261B2

公开(公告)日：2025-01-07

申请号：US17858699

申请日：2022-07-06

Applicant: Psiquantum, Corp.

Inventor： Hugo Cable

IPC: G02F1/225 ,  G02F1/21

Abstract: Photons can propagate concurrently in two different directions along optical paths in a generalized Mach Zehnder interferometer (GMZI). A counterpropagating GMZI can include a first set of input ports and a second set of input ports, a first set of output ports and a second set of output ports, and optical components interconnected to form a GMZI that can selectably establish a first optical path between one of the first set of input ports and one of the first set of output ports and a second optical path between one of the second set of input ports and one of the second set of output ports. The first optical path and the second optical path can include an overlapping portion though which photons on the first and second optical paths propagate in opposing directions.