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1.发明授权
公开(公告)号：US5498881A
公开(公告)日：1996-03-12
申请号：US309188
申请日：1994-09-20
CPC分类号： H01L39/225
摘要： A superconducting device has a substrate and a superconducting film formed on the substrate. A surface of the substrate has a first surface portion of which a curvature is constant or changes continuously, a second surface portion of which a curvature is constant or changes continuously, and a third surface portion at which the first and second surface portions meet and at which the curvatures of the first and second surface portions become discontinuous. The superconducting film formed on the surface of said substrate has a grain boundary serving as a junction only in a portion corresponding to the third surface portion of the substrate.
摘要翻译： 超导装置具有在基板上形成的基板和超导膜。 基板的表面具有曲率恒定或连续变化的第一表面部分，曲率恒定或连续变化的第二表面部分和第一和第二表面部分相遇的第三表面部分 第一和第二表面部分的曲率变得不连续。 形成在所述基板的表面上的超导膜仅在对应于基板的第三表面部分的部分中具有用作结的晶界。
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公开(公告)号：US5571778A
公开(公告)日：1996-11-05
申请号：US413999
申请日：1995-03-30
申请人： Manabu Fujimoto , Katsumi Suzuki , Youichi Enomoto , Shoji Tanaka
发明人： Manabu Fujimoto , Katsumi Suzuki , Youichi Enomoto , Shoji Tanaka
CPC分类号： H01L27/18 , H01L39/145 , H01L39/2496 , Y10S505/728
摘要： A superconductor junction material is disclosed which comprises a substrate of a single crystal, and at least flux flow element, and optionally at least one Josephson junction element, provided on the surface, each of the flux flow and Josephson junction elements being formed of a superconducting oxide layer having a weak link. The flux flow and Josephson junction elements are prepared by vacuum deposition at different oxygen partial pressures.
摘要翻译： 公开了一种超导体接合材料，其包括单晶体的衬底，以及设置在表面上的至少一个通量流动元件和任选的至少一个约瑟夫逊结元件，每个磁通流和约瑟夫逊结元件由超导体 具有弱连接的氧化物层。 通过真空沉积在不同的氧分压下制备通量流和约瑟夫逊结元件。
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公开(公告)号：US5790078A
公开(公告)日：1998-08-04
申请号：US742386
申请日：1996-11-01
CPC分类号： H03B15/003 , H01Q1/247 , H01Q1/364 , H03D9/06 , Y10T29/49016
摘要： A superconducting patch antenna array, operative at a temperature lower than or equal to that of liquid nitrogen, includes a superconducting mixer comprising at least one non-linear Josephson junction to transform the received high frequency signal to a lower intermediate frequency for purposes of reducing the transmission loss and thereby increasing the antenna performance.
摘要翻译： 在低于或等于液氮的温度下工作的超导贴片天线阵列包括包含至少一个非线性约瑟夫逊结的超导混频器，以将接收到的高频信号转换为较低的中频，目的是减少 传输损耗，从而增加天线性能。
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4.发明授权Josephson element having a NdBa.sub.2 Cu.sub.3 O.sub.7-y superconductor thin-film wiring pattern 失效具有NdBa2Cu3O7-y超导体薄膜布线图案的约瑟夫逊元件
公开(公告)号：US5877122A
公开(公告)日：1999-03-02
申请号：US649205
申请日：1996-05-17
CPC分类号： H01L39/2496 , H01L39/225 , Y10S505/702
摘要： An oxide superconductor element, produced by forming a damaged region on a substrate surface by the Ga.sup.+ focusing ion beam method and then depositing an oxide superconductor thin-film over it, is characterized in that a NdBa.sub.2 Cu.sub.3 O.sub.7-y (0.ltoreq.y.ltoreq.0.5) oxide superconductor is used in a tunnel junction having a tunneling barrier region with weak superconductivity.
摘要翻译： 通过Ga +聚焦离子束法在衬底表面上形成受损区域，然后在其上沉积氧化物超导体薄膜产生的氧化物超导体元件的特征在于，NdBa2Cu3O7-y（0≤y< = 0.5）氧化物超导体用于具有弱超导性的隧道势垒区的隧道结中。
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公开(公告)号：US5534715A
公开(公告)日：1996-07-09
申请号：US148277
申请日：1993-11-08
CPC分类号： H01L39/2496
摘要： A Josephson junction is disclosed which includes a substrate of a single crystal having a substantially flat surface, a wiring pattern of an oxide superconductor formed on the flat surface of the substrate, and an altered region formed having a width of 300 nm or less and formed in the wiring pattern to intersect the wiring pattern, the crystal orientations of the wiring pattern on both sides of the altered region being equal to each other. The Josephson junction may be prepared by a process including the steps of: (a) coating a surface of a substrate of a single crystal with a normal metal to form a protecting layer over the surface of the substrate; (b) irradiating a predetermined portion of the protecting layer with a focused ion beam so that an irradiated portion is formed in the substrate; (c) removing the protecting layer from the substrate; and (d) forming a wiring pattern of an oxide superconductor on the surface of the substrate from which the protecting layer has been removed such that the wiring pattern crosses the irradiated portion of the substrate, thereby forming an altered portion in the wiring pattern at a position above the irradiated portion.
摘要翻译： 公开了一种约瑟夫逊结，其包括具有基本上平坦的表面的单晶的衬底，形成在衬底的平坦表面上的氧化物超导体的布线图案和形成为具有300nm或更小的宽度的改变区域 在与布线图案相交的布线图案中，改变区域两侧的布线图案的晶体取向彼此相等。 约瑟夫逊结可以通过包括以下步骤的方法来制备：（a）用普通金属涂覆单晶的衬底的表面以在衬底的表面上形成保护层; （b）用聚焦离子束照射保护层的预定部分，使得在基板中形成照射部分; （c）从衬底上去除保护层; 以及（d）在已经去除了保护层的基板的表面上形成氧化物超导体的布线图案，使得布线图案与基板的照射部分交叉，从而在布线图案中形成改变部分 位于照射部分上方。
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6.发明授权
公开(公告)号：US6163713A
公开(公告)日：2000-12-19
申请号：US35366
申请日：1998-03-05
申请人： Katsumi Suzuki , Sadahiko Miura , Takayuki Inoue , Koji Muranaka , Hideaki Zama , Youichi Enomoto , Tadataka Morishita , Shoji Tanaka
发明人： Katsumi Suzuki , Sadahiko Miura , Takayuki Inoue , Koji Muranaka , Hideaki Zama , Youichi Enomoto , Tadataka Morishita , Shoji Tanaka
CPC分类号： H01P3/081 , H01L39/143 , H01L39/2422 , Y10S505/70 , Y10S505/701 , Y10S505/866
摘要： In a high frequency transmission line having a dielectric substrate and a conductor line which is provided on the dielectric substrate for allowing electric current to flow therethrough, the conductor line has a non-grain-boundary oxide superconductor layer with twin walls but without grain boundaries. The high frequency transmission line is in the form of a plane circuit. It is preferable that an oriented oxide superconductor layer is provided between the dielectric substrate and the non-grain-boundary oxide superconductor layer.
摘要翻译： 在具有电介质基板和导电线的高频传输线路中，该导体线设置在电介质基板上，用于允许电流流过其中，导体线具有双层壁但不具有晶界的非晶界氧化物超导体层。 高频传输线是平面电路的形式。 优选在电介质基板和非晶界氧化物超导体层之间设置取向氧化物超导体层。
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公开(公告)号：US5920811A
公开(公告)日：1999-07-06
申请号：US876244
申请日：1997-06-16
申请人： Katsumi Suzuki , Youichi Enomoto , Shoji Tanaka
发明人： Katsumi Suzuki , Youichi Enomoto , Shoji Tanaka
摘要： In a superconductor mixer, a non-linear element is provided on a substrate. The non-linear element comprises at least one Josephson junction connected in series. An antenna pattern of superconductor, an intermediate frequency output pattern of superconductor, and a bias current pattern of superconductor are connected to the non-linear element. A signal high frequency wave (RF) and a local reference frequency wave (LO) are received by the antenna pattern and then absorbed in the non-linear element to obtain an intermediate frequency (IF) signal. Then, with applying a current to the series connected Josephson junction in the non-linear element from the bias current pattern, the intermediate frequency (IF) signal as a frequency signal of a difference between the signal high frequency wave (RF) and the local reference frequency wave (LO) is output to the intermediate frequency output pattern. At this time, by varying the current supplied from the bias current pattern, a phase of the output intermediate frequency (IF) signal is varied.
摘要翻译： 在超导体混合器中，在衬底上提供非线性元件。 非线性元件包括至少一个串联连接的约瑟夫逊结。 超导体的天线图案，超导体的中频输出图案和超导体的偏置电流图案被连接到非线性元件。 信号高频（RF）和局部参考频率波（LO）由天线方向接收，然后被吸收在非线性元件中以获得中频（IF）信号。 然后，通过从偏置电流模式向非线性元件中的串联连接的约瑟夫逊结施加电流，将中频（IF）信号作为信号高频波（RF）与本地 参考频率波（LO）被输出到中频输出模式。 此时，通过改变从偏置电流模式提供的电流，改变输出中频（IF）信号的相位。
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8.发明授权
公开(公告)号：US5812943A
公开(公告)日：1998-09-22
申请号：US706800
申请日：1996-09-03
申请人： Katsumi Suzuki , Youichi Enomoto , Shoji Tanaka
发明人： Katsumi Suzuki , Youichi Enomoto , Shoji Tanaka
摘要： The invention provides a wide frequency band high temperature superconductor mixer antenna which allows a superconductor feed line, which exhibits a high resistance loss in a high frequency region, to be used in a low frequency region with a low loss and which is provided with a same structure as a mixer which has a wide band twice or more the frequency of a millimeter or more wave while keeping a characteristic of a high integration array antenna, which makes most of the high integrity of superconductor feed lines. The wide frequency band high temperature superconductor mixer antenna includes one or a plurality of planar structure antenna patterns of the log-periodical type or the log-spiral type and a plurality of oxide superconductor thin film feed line wiring patterns formed on a same face of a main surface of a substrate, a central portion of each of the planar structure antenna patterns being formed from an oxide superconductor thin film on which a non-linear element part is provided.
摘要翻译： 本发明提供了一种宽带高温超导体混频器天线，其允许在高频区域表现出高电阻损耗的超导体馈电线用于具有低损耗的低频区域并且具有相同的 结构作为混频器，其具有两倍或更多的毫米波或更多波的频率，同时保持高集成阵列天线的特性，这使得超导体馈线的大部分高度完整性。 宽频带高温超导体混频器天线包括对数周期型或对数螺旋型的一个或多个平面结构天线图案，以及形成在同一面上的多个氧化物超导体薄膜馈送线布线图案 基板的主表面，每个平面结构天线图案的中心部分由其上设置有非线性元件部分的氧化物超导薄膜形成。
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公开(公告)号：US06207067B1
公开(公告)日：2001-03-27
申请号：US09161697
申请日：1998-09-29
申请人： Naoki Yutani , Katsumi Suzuki , Youichi Enomoto , Jian-Guo Wen
发明人： Naoki Yutani , Katsumi Suzuki , Youichi Enomoto , Jian-Guo Wen
IPC分类号： C23F100
CPC分类号： H01L39/2496 , Y10S505/728
摘要： A method for fabricating an oxide superconducting device includes the steps of: forming a V-shaped groove on a substrate by a converging ion beam and forming a barrier with reduced superconductivity on the oxide superconducting thin-film on the groove to form a Josephson Junction, wherein the irradiation ion amount of the converging ion beam is varied according to the position of the beam within the groove in such a manner that an inclination angle of the inclined portion of the substrate is fixed. An oxide superconducting device (a Josephson Junction device) having a high degree of flexibility in arrangement and with high reproducibility, and having a high degree of uniformity is provided.
摘要翻译： 一种制造氧化物超导器件的方法包括以下步骤：通过会聚离子束在衬底上形成V形槽，并在沟槽上的氧化物超导薄膜上形成具有降低的超导性的阻挡层以形成约瑟夫逊结， 其中会聚离子束的照射离子量根据所述槽内的所述光束的位置以固定所述基板的倾斜部分的倾斜角度的方式而变化。 提供了具有高度的布置灵活性和高重现性并且具有高均匀度的氧化物超导装置（约瑟夫逊结装置）。
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10.发明授权Josephson junction element with an asymmetric groove providing a single weak link region 失效约瑟夫逊连接元件具有提供单个弱连接区域的非对称凹槽
公开(公告)号：US5925892A
公开(公告)日：1999-07-20
申请号：US873865
申请日：1997-06-12
申请人： Yuji Mizuno , Katsumi Suzuki , Youichi Enomoto
发明人： Yuji Mizuno , Katsumi Suzuki , Youichi Enomoto
IPC分类号： H01L39/22 , H01L39/24 , H01L29/06 , H01L31/0256
CPC分类号： H01L39/225
摘要： A Josephson junction element having a substrate of a single crystal having a V-shaped notch formed in a surface of the substrate and a wiring pattern of an oxide superconductor formed on the surface of the substrate and crossing the notch to form a weak link region in the pattern at a position above the notch. The notch is defined by first and second walls joining with each other at the bottom of the notch and has first and second corners at which the first and second walls meet the surface of the substrate. The first and second corners have radii of curvature of 5-50 nm and 50-500 nm, respectively, provided that the difference in radius of curvature between the first and second corners is not smaller than 10 nm. The notch is formed by obliquely irradiating a predetermined portion of the substrate with a focused ion beam.
摘要翻译： 约瑟夫逊连接元件具有在基板的表面上形成有V形切口的单晶基板和形成在基板表面上的氧化物超导体的布线图案，并与该凹口交叉以形成弱连接区域 在凹口上方的位置处的图案。 凹口由在凹口的底部处彼此连接的第一和第二壁限定，并且具有第一和第二角部，第一和第二壁在该角部处与基底的表面相遇。 第一和第二角分别具有5-50nm和50-500nm的曲率半径，条件是第一和第二角之间的曲率半径差不小于10nm。 通过用聚焦离子束倾斜地照射基板的预定部分来形成切口。
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