公开(公告)号：US20070158791A1

公开(公告)日：2007-07-12

申请号：US11584050

申请日：2006-10-20

申请人： Hironori Wakana ,  Koji Tsubone ,  Yoshinobu Tarutani ,  Yoshihiro Ishimaru ,  Keiichi Tanabe

发明人： Hironori Wakana ,  Koji Tsubone ,  Yoshinobu Tarutani ,  Yoshihiro Ishimaru ,  Keiichi Tanabe

IPC分类号： H01L23/552

CPC分类号： H01L39/225 ,  H01L27/18 ,  H03K19/195

摘要： A superconducting junction element has a lower electrode formed by a superconductor layer, a barrier layer provided on a portion of a surface of the lower electrode, an upper electrode formed by a superconductor and covering the barrier layer, and a superconducting junction formed by the lower electrode, the barrier layer and the upper electrode. A critical current density of the superconducting junction is controlled based on an area of the lower electrode.

摘要翻译： 超导接合元件具有由超导体层形成的下部电极，设置在下部电极的表面的一部分上的阻挡层，由超导体形成并覆盖阻挡层的上部电极以及由下部电极形成的超导结 电极，阻挡层和上电极。 基于下电极的面积来控制超导结的临界电流密度。

公开(公告)号：US06790675B2

公开(公告)日：2004-09-14

申请号：US10391412

申请日：2003-03-18

申请人： Seiji Adachi ,  Hironori Wakana ,  Yoshihiro Ishimaru ,  Masahiro Horibe ,  Osami Horibe ,  Yoshinobu Tarutani ,  Keiichi Tanabe

发明人： Seiji Adachi ,  Hironori Wakana ,  Yoshihiro Ishimaru ,  Masahiro Horibe ,  Osami Horibe ,  Yoshinobu Tarutani ,  Keiichi Tanabe

IPC分类号： H01L2100

CPC分类号： H01L39/2496 ,  Y10T29/49014

摘要： A method of fabricating a Josephson device includes the steps of forming a first superconducting layer and forming a second superconducting layer to form a Josephson junction therebetween, wherein the step of forming the second superconducting layer includes the steps of conducting a first step of forming the second superconducting layer with improved uniformity and conducting a second step of forming the second superconducting layer on the second superconducting layer formed in the first step with improved film quality.

摘要翻译： 一种制造约瑟夫逊器件的方法包括以下步骤：形成第一超导层并形成第二超导层以在其间形成约瑟夫逊结，其中形成第二超导层的步骤包括以下步骤：进行形成第二超导层的第二步骤 超导层，并且在第一步骤中形成的第二超导层上形成第二超导层并且改善膜质量的第二步骤。

公开(公告)号：US5463518A

公开(公告)日：1995-10-31

申请号：US673866

申请日：1991-03-22

申请人： Shigekazu Otomo ,  Noriyuki Kumasaka ,  Kazuo Shiiki ,  Takeo Yamashita ,  Noritoshi Saito ,  Yoshinobu Tarutani

发明人： Shigekazu Otomo ,  Noriyuki Kumasaka ,  Kazuo Shiiki ,  Takeo Yamashita ,  Noritoshi Saito ,  Yoshinobu Tarutani

IPC分类号： G01R33/035 ,  G11B5/00 ,  G11B5/127 ,  G11B5/31 ,  G11B5/33 ,  G11B5/40 ,  G11B5/53 ,  G11B33/14 ,  G11B5/147 ,  G01C21/08 ,  G01R33/02

CPC分类号： G11B5/1278 ,  G01R33/0358 ,  G11B5/00 ,  G11B5/31 ,  G11B5/313 ,  G11B5/3143 ,  G11B5/332 ,  G11B5/40 ,  G11B5/53 ,  G11B33/14 ,  Y10S505/843

摘要： A magnetic head has a superconducting quantum interference device having a ring made of a superconductive material including a Josephson junction which links to a magnetic flux generated by a magnetic recording medium, and a magnetic pole for guiding the magnetic flux generated by the magnetic recording medium or the ring made of a superconductive material arranged in parallel to a plane of the magnetic recording medium so that the magnetic flux generated by the magnetic recording medium flows into a through-hole of the ring. A magnetic recording and reproducing apparatus includes such a magnetic head, a winding to which a reproduced signal from the magnetic head is applied and the superconductive ring including the Josephson junction arranged such that the magnetic flux generated by the winding flows thereto.

摘要翻译： 磁头具有超导量子干涉装置，其具有由超导材料制成的环，该超导材料包括与由磁记录介质产生的磁通相关联的约瑟夫逊结，以及用于引导由磁记录介质产生的磁通的磁极或 由与磁记录介质的平面平行布置的超导材料制成的环，使得由磁记录介质产生的磁通流入环的通孔。 磁记录和再现装置包括这样的磁头，施加来自磁头的再现信号的绕组和包括约瑟夫逊结的超导环，其布置成使得由绕组产生的磁通量流向其。

公开(公告)号：US5218297A

公开(公告)日：1993-06-08

申请号：US884473

申请日：1992-05-13

申请人： Hideaki Nakane ,  Yoshinobu Tarutani

发明人： Hideaki Nakane ,  Yoshinobu Tarutani

IPC分类号： G01R33/035

CPC分类号： G01R33/0358 ,  Y10S505/702 ,  Y10S505/846

摘要： Since a superconducting quantum interference device (SQUID) using a high temperature superconductor operates at the liquid nitrogen temperature 77 K, which is higher than the liquid helium temperature 4.2 K, it is necessary that the value of signal voltages is at a level, which is sufficiently higher than the thermal noise level. The superconducting inductance L should be decreased with increasing current flowing through Josephson junctions in the SQUID. The superconducting inductance can be reduced by various methods such as reduction in the size of the aperture of the superconducting inductance, parallel connection of superconducting inductances, utilization of a superconducting ground plane, etc., in order to realize a SQUID, which can be use in a wide application field at the liquid nitrogen temperature 77 K.

摘要翻译： 由于使用高温超导体的超导量子干涉装置（SQUID）在高于液氦温度4.2K的液氮温度77K下工作，所以信号电压值必须处于一个水平 足够高于热噪声水平。 超导电感L应随流过SQUID中约瑟夫逊结的电流增加而减小。 可以通过各种方法减少超导电感，例如减小超导电感的孔径尺寸，超导电感的并联连接，超导接地平面的利用等，以实现可以使用的SQUID 在液氮温度77K的广泛应用领域。

公开(公告)号：US4563695A

公开(公告)日：1986-01-07

申请号：US575273

申请日：1984-01-30

申请人： Yoshinobu Tarutani ,  Toshikazu Nishino

发明人： Yoshinobu Tarutani ,  Toshikazu Nishino

IPC分类号： H01L39/22

CPC分类号： H01L39/223 ,  Y10S505/874

摘要： A superconducting switching device is provided in which a base electrode layer of a sandwich type superconducting tunnel junction and a control line film are formed at the same level. The control line film having a high accuracy pattern can be formed, and the number of overall layers can also be reduced.

摘要翻译： 提供了一种超导开关器件，其中夹层型超导隧道结的基极层和控制线膜形成在同一水平。 可以形成具有高精度图案的控制线膜，并且还可以减少总层数。