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    • 4. 发明申请
    • A MANUFACTURING METHOD FOR A NANOSTRUCTURED DEVICE USING A SHADOW MASK
    • 一种使用阴影掩模的纳米结构器件的制造方法
    • WO2017153388A1
    • 2017-09-14
    • PCT/EP2017/055291
    • 2017-03-07
    • UNIVERSITY OF COPENHAGEN
    • KROGSTRUP, PeterMARCUS, Charles
    • H01L39/22B82Y40/00C23C14/14C30B29/60H01L39/24G06N99/00
    • The present disclosure relates to a device and method for forming efficient quantum devices, in particular quantum devices that have not been contaminated in ex-situ processes. In particular the presently disclosed method can be applied for manufacturing of a Josephson junction which is an element in a tuneable superconducting qubit. One embodiment relates to a method for in-situ production of a barrier/gap in the surface layer(s) of an elongated nanostructure, the method comprising the steps of providing at least one elongated device nanostructure on a substrate in a vacuum chamber having at least one deposition source, providing at least one elongated shadow nanostructure in said vacuum chamber, and depositing at least a first facet layer on at least a part of the device nanostructure(s) and the shadow nanostructure(s) by means of said deposition source, wherein the deposition source, the device nanostructure and the shadow nanostructure during deposition are arranged such that the shadow nanostructure covers and forms a shadow mask on at least a part of the device nanostructure thereby forming a gap in the first facet layer deposited on the device nanostructure.
    • 本公开涉及用于形成高效量子器件的器件和方法,特别是在异位过程中尚未被污染的量子器件。 具体地说,目前公开的方法可以用于制造作为可调超导量子位元件的约瑟夫森结。 一个实施例涉及一种用于原位产生细长纳米结构的表面层中的阻挡层/间隙的方法,所述方法包括以下步骤:在真空室中的衬底上提供至少一个细长器件纳米结构, 至少一个沉积源,在所述真空室中提供至少一个细长阴影纳米结构,以及借助于所述沉积源在所述器件纳米结构和所述阴影纳米结构的至少一部分上沉积至少第一小面层, ,其中在沉积过程中沉积源,器件纳米结构和阴影纳米结构被布置成使得阴影纳米结构覆盖并在器件纳米结构的至少一部分上形成阴影掩模,从而在沉积在器件上的第一小面层中形成间隙 纳米结构。