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1.发明授权Method of making improved tunnel barriers for superconducting Josephson junction devices 失效制造超导约瑟夫逊结器件的隧道屏障的方法
公开(公告)号：US4437227A
公开(公告)日：1984-03-20
申请号：US437386
申请日：1982-10-28
CPC分类号： H01L39/2493 , H01L39/223 , Y10S438/951 , Y10S505/922
摘要： During the manufacture of Josephson superconducting devices, it is necessary to provide on a substrate a base electrode, a counter electrode and a small tunnel barrier area therebetween. A novel method of making all three of these active elements in the same vacuum chamber without having to remove the substrate from the vacuum chamber is provided so that the tunnel barrier area is accurately made to a predetermined size and without the danger of contamination. The novel structure is made as a substantially planarized laminate in the vacuum chamber and the tunnel barrier area is defined in a supplemental step.
摘要翻译： 在制造约瑟夫森超导装置期间，需要在基板上设置基极，对电极和它们之间的小隧道阻挡区域。 提供了使这些有源元件全部三个在同一真空室中而不必从真空室中移出基板的新颖方法，使得隧道屏障区域精确地制成预定尺寸并且没有污染的危险。 该新型结构在真空室中形成为基本平坦化的层压体，并且在补充步骤中限定隧道屏障区域。
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公开(公告)号：US4501975A
公开(公告)日：1985-02-26
申请号：US349414
申请日：1982-02-16
IPC分类号： H03K3/037 , H03K3/38 , H03K19/195 , H03K3/00
CPC分类号： H03K3/38 , H03K19/1954 , Y10S505/864
摘要： A Josephson junction latch circuit is provided which has an AND gate having plural inputs and a single output. The output of the single AND gate is directly coupled to a Josephson junction flux storage loop capable of storing flux indicative of the output of the AND gate. A Josephson junction sense line is provided capable of sensing the flux condition of the flux storage loop. The sense line is directly coupled to amplifying gates which produce amplified true and complement quantities whenever the sense line is actuated.
摘要翻译： 提供了具有多个输入和单个输出的与门的约瑟夫逊结锁存电路。 单个AND门的输出直接耦合到能够存储指示与门输出的通量的约瑟夫逊结通量存储回路。 提供约瑟夫逊结感测线，其能够感测磁通量存储回路的通量条件。 感测线直接耦合到放大门，每当感测线被驱动时，其产生放大的真实和补充量。
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公开(公告)号：US4413197A
公开(公告)日：1983-11-01
申请号：US298149
申请日：1981-08-31
IPC分类号： H03K19/195
CPC分类号： H03K19/1954 , Y10S505/859
摘要： A Josephson junction AND gate logic circuit is provided which has an enhanced and improved operating window area. The circuit comprises two parallel branches one for the input and one for the output connected between a biasing current source and a ground or reference voltage. The input branch is provided with a first branch resistor, a third Josephson junction and an interferometer in series between the current source and ground. A plurality of input gate signal lines connects to the interferometer and a sink resistor is connected in parallel with the interferometer. When the input current signals collectively exceed a predetermined level, the two Josephson junctions in the interferometer switch ON and assume the high impedance state. The input current and biasing current is diverted into the output branch causing the second Josephson junction in the output branch to switch ON. The biasing current in the output branch creates a high-gain current to the load circuit connected in parallel with the second Josephson junction.
摘要翻译： 提供了约瑟夫逊结AND门逻辑电路，其具有增强和改进的操作窗口区域。 该电路包括两个平行分支，一个用于输入，一个用于连接在偏置电流源和接地或参考电压之间的输出。 输入支路设置有电流源和地之间的第一分支电阻器，第三约瑟夫逊结和干涉仪。 多个输入栅极信号线连接到干涉仪，并且吸收电阻器与干涉仪并联连接。 当输入电流信号共同超过预定电平时，干涉仪中的两个约瑟夫逊结接通并呈现高阻态。 输入电流和偏置电流被转移到输出分支中，导致输出分支中的第二约瑟夫逊结接通。 输出支路中的偏置电流产生与第二个约瑟夫逊结并联连接的负载电路的高增益电流。
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公开(公告)号：US4509146A
公开(公告)日：1985-04-02
申请号：US446129
申请日：1982-12-02
CPC分类号： G11C11/44 , H01L39/223 , Y10S505/832
摘要： A superconductive Josephson junction high density memory array is provided. Each memory cell in the array comprises a two branch superconducting interferometer storage loop which has only a single Josephson junction device in one of the branches. The Josephson junction devices are mounted on a substrate having a patterned ground plane. The ground plane pattern is provided with holes or apertures which surround the Josephson junction devices so that the control current of the control lines couple with the tunnel junctions of the Josephson junction devices but not with the ground plane. This structural arrangement provides a threshold characteristic for the single Josephson junction device which is symmetrical to the gate current, thus, may be easily switched to two current states indicative of two logic states.
摘要翻译： 提供超导约瑟夫逊结高密度存储器阵列。 该阵列中的每个存储单元包括两个分支超导干涉仪存储回路，其中一个分支中仅有一个约瑟夫逊结器件。 约瑟夫逊结装置安装在具有图案化接地平面的基板上。 接地平面图案设置有围绕约瑟夫逊结装置的孔或孔，使得控制线的控制电流与约瑟夫逊结装置的隧道结相耦合，但不与接地平面耦合。 该结构布置为与栅极电流对称的单个约瑟夫森结器件提供阈值特性，因此可以容易地切换到指示两个逻辑状态的两个电流状态。
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5.发明授权
公开(公告)号：US4559459A
公开(公告)日：1985-12-17
申请号：US480524
申请日：1983-03-30
IPC分类号： H03K19/195
CPC分类号： H03K19/1954 , H03K19/1956 , Y10S505/859
摘要： A high gain Josephson junction logic circuit is provided. The novel circuit comprises a high gain non-linear threshold input Josephson junction logic circuit which is coupled to a high gain Josephson junction amplifier. The high gain input circuit provides the capability of driving a larger number of output circuits or employing a larger number of input signals.
摘要翻译： 提供高增益约瑟夫逊结逻辑电路。 该新颖电路包括耦合到高增益约瑟夫逊结放大器的高增益非线性阈值输入约瑟夫逊结逻辑电路。 高增益输入电路提供驱动更多数量的输出电路或采用更大数量的输入信号的能力。
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公开(公告)号：US4458160A
公开(公告)日：1984-07-03
申请号：US323144
申请日：1981-11-19
CPC分类号： H03F19/00 , Y10S505/865
摘要： A single Josephson junction device is arranged in a single branch which comprises an external source resistor connected in series with an output resistor and a Josephson junction device. An input node and an input resistor are in series and connected to the node between the output resistor and the Josephson junction device. Voltage signals applied to the input voltage node are amplified by connecting a high gain voltage output in parallel with the output resistor and providing sensing means for sensing the voltage output across the output resistor only when the Josephson junction device is switching from its low impedance state to its high impedance state.
摘要翻译： 单个约瑟夫逊结装置布置在单个分支中，其包括与输出电阻器和约瑟夫逊结装置串联连接的外部源电阻器。 输入节点和输入电阻串联连接到输出电阻和约瑟夫逊结器件之间的节点。 施加到输入电压节点的电压信号通过与输出电阻并联连接高增益电压输出而被放大，并提供感测装置，用于只有当约瑟夫逊结器件从其低阻抗状态切换到 其高阻抗状态。
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公开(公告)号：US4413196A
公开(公告)日：1983-11-01
申请号：US298148
申请日：1981-08-31
IPC分类号： H03K19/195
CPC分类号： H03K19/1956 , Y10S505/859
摘要： A two branch, three Josephson junction gating circuit is provided with a plurality of inputs to enable the circuit to be operated as a high-gain logic OR gate. The circuit is arranged to provide a larger operating window area and to provide an improved and optimized gain characteristic by selectively switching ON the Josephson junctions in the circuit.
摘要翻译： 两个分支，三个约瑟夫逊结门控门电路设置有多个输入，以使电路能够作为高增益逻辑或门运行。 电路被设置成提供更大的操作窗口面积并且通过选择性地接通电路中的约瑟夫逊结来提供改进和优化的增益特性。
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公开(公告)号：US4459823A
公开(公告)日：1984-07-17
申请号：US480522
申请日：1983-03-30
CPC分类号： C23C14/505 , C23C14/541 , F25D3/10
摘要： An apparatus comprising a rotating substrate holder is provided. The rotating substrate holder is hollow and adapted to receive liquid gas such as nitrogen to cool the substrate to cryogenic temperatures. The novel substrate holder is supported inside of a vacuum chamber by a thin wall tube which is sealed with a liquid rotating seal at the point where it passes completely through the top wall of the vacuum chamber. The novel thin wall tube support provides access to the hollow substrate holder from outside the vacuum chamber and provides temperature isolation of the liquid in the substrate holder so that the liquid rotating seals are maintained at operable elevated temperatures.
摘要翻译： 提供一种包括旋转衬底保持器的设备。 旋转衬底保持器是中空的并且适于接收液体气体例如氮气以将衬底冷却至低温。 新颖的基板保持器通过薄壁管支撑在真空室内部，薄壁管在其完全穿过真空室的顶壁的位置用液体旋转密封件密封。 新颖的薄壁管支撑件提供从真空室外部进入中空基板保持器，并且提供液体在基板保持器中的温度隔离，使得液体旋转密封件保持在可操作的升高的温度。
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公开(公告)号：US4474828A
公开(公告)日：1984-10-02
申请号：US480523
申请日：1983-03-30
CPC分类号： H01L39/2493 , Y10S148/089 , Y10S505/817 , Y10S505/818
摘要： A novel method of depositing the oxide barrier junction on a base electrode of a Josephson junction device is provided. An ionized oxygen plasma region is generated juxtaposed the surface of the base electrode to be oxidized. The pressure of the oxygen in the vacuum chamber is held at a predetermined high pressure where the zero voltage supercurrent is found to be independent of oxygen pressure variations and the flow of oxygen through the vacuum chamber is stabilized at the optimum minimum necessary for growth of the oxide barrier junction. The oxide barrier junctions so produced have consistent and predictable supercurrent densities.
摘要翻译： 提供了一种在约瑟夫逊结装置的基极上沉积氧化物阻挡结的新方法。 产生电离氧等离子体区域并置待被氧化的基极的表面。 真空室中的氧气压力保持在预定的高压，其中发现零电压超级电流与氧气压力变化无关，并且通过真空室的氧气流量被稳定在生长所需的最佳最小值 氧化物屏障结。 如此制造的氧化物阻挡结具有一致和可预测的超流密度。
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公开(公告)号：US4013803A
公开(公告)日：1977-03-22
申请号：US627417
申请日：1975-10-30
申请人： Richard M. Josephs
发明人： Richard M. Josephs
IPC分类号： G11C11/14 , H01F10/00 , H01F10/12 , H01F10/13 , H01F41/14 , H01F41/34 , H01L43/12 , B05D5/12 , C23C11/00
摘要： The invention discloses a technique for fabricating an amorphous (i.e., non-crystalline) bubble device which enables high quality permalloy films for drive circuits and magneto-resistors to be deposited without destroying the magnetic properties of the amorphous film.
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