Methods and systems for manufacturing semiconductor devices

    公开(公告)号:US12253483B1

    公开(公告)日:2025-03-18

    申请号:US18110848

    申请日:2023-02-16

    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.

    Superconducting nanowire single photon detector and method of fabrication thereof

    公开(公告)号:US11009387B2

    公开(公告)日:2021-05-18

    申请号:US16849829

    申请日:2020-04-15

    Abstract: A superconductor device according to some embodiments comprises a superconductor stack, which includes a superconductor layer and a silicon cap layer over the superconductor layer, the cap layer including amorphous silicon. The superconductor device further comprises a metal contact over a portion of the silicon cap layer and electrically-coupled to the superconductor layer. The metal contact comprises a core including a first metal, and an outer layer around the core that includes a second metal. The portion of the silicon cap layer is converted from silicon to a conductive compound including the second metal to provide low-resistance electrical coupling between the superconductor layer and the metal contact. The superconductor device further comprises a waveguide, and the first portion of the cap layer under the metal contact is at a sufficient lateral distance from the waveguide to prevent optical coupling between the metal contact and the waveguide.

    Superconducting nanowire single photon detector and method of fabrication thereof

    公开(公告)号:US11441941B2

    公开(公告)日:2022-09-13

    申请号:US17232086

    申请日:2021-04-15

    Abstract: A superconductor device is manufactured by depositing a barrier layer over a substrate including silicon, the barrier layer including silicon and nitrogen; depositing a seed layer for a superconductor layer over the barrier layer, the seed layer including aluminum and nitrogen; depositing the 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; and depositing a silicon cap layer over the superconductor layer. 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.

    Superconducting Nanowire Single Photon Detector and Method of Fabrication Thereof

    公开(公告)号:US20200333179A1

    公开(公告)日:2020-10-22

    申请号:US16849829

    申请日:2020-04-15

    Abstract: A superconductor device according to some embodiments comprises a superconductor stack, which includes a superconductor layer and a silicon cap layer over the superconductor layer, the cap layer including amorphous silicon. The superconductor device further comprises a metal contact over a portion of the silicon cap layer and electrically-coupled to the superconductor layer. The metal contact comprises a core including a first metal, and an outer layer around the core that includes a second metal. The portion of the silicon cap layer is converted from silicon to a conductive compound including the second metal to provide low-resistance electrical coupling between the superconductor layer and the metal contact. The superconductor device further comprises a waveguide, and the first portion of the cap layer under the metal contact is at a sufficient lateral distance from the waveguide to prevent optical coupling between the metal contact and the waveguide.

    Methods and systems for manufacturing superconductor devices

    公开(公告)号:US11719653B1

    公开(公告)日:2023-08-08

    申请号:US16575282

    申请日:2019-09-18

    CPC classification number: G01N23/2076 H01L39/2435 H01L39/2438

    Abstract: The various embodiments described herein include methods for manufacturing superconductor devices. In some embodiments, a method of manufacturing a superconductor includes: (1) manufacturing a first superconductor device; (2) characterizing the first superconductor device, including: (a) obtaining x-ray diffraction spectra of the first superconductor device; and (b) identifying a ratio of a first cubic phase peak to a second cubic phase peak in the x-ray diffraction spectra; (3) adjusting a manufacturing parameter based on the identified ratio; and (4) manufacturing a second superconductor device with the adjusted manufacturing parameter.

    Superconducting Nanowire Single Photon Detector and Method of Fabrication Thereof

    公开(公告)号:US20210239518A1

    公开(公告)日:2021-08-05

    申请号:US17232086

    申请日:2021-04-15

    Abstract: A superconductor device is manufactured by depositing a barrier layer over a substrate including silicon, the barrier layer including silicon and nitrogen; depositing a seed layer for a superconductor layer over the barrier layer, the seed layer including aluminum and nitrogen; depositing the 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; and depositing a silicon cap layer over the superconductor layer. 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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