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    Process for preparation of tunneling barriers
    1.
    发明授权
    Process for preparation of tunneling barriers 失效
    隧道障碍物的制备工艺

    公开(公告)号：US3673071A

    公开(公告)日：1972-06-27

    申请号：US3673071D

    申请日：1968-08-08

    Applicant: TEXAS INSTRUMENTS INC

    Inventor： PRITCHARD JOHN P JR ,  SCHROEN WALTER H

    IPC: C23C8/36 ,  C23C14/02 ,  C23C14/22 ,  H01L39/24 ,  C23C15/00

    CPC classification number: H01L39/2493 ,  C23C8/36 ,  C23C14/024 ,  C23C14/22 ,  Y10S505/817 ,  Y10S505/819

    Abstract: Tunneling barriers, in particular superconductive tunneling barriers (Josephson barriers), are prepared in a vacuum chamber maintained at a low atmospheric pressure using an oxygen glow discharge which produces stable and reproducible superconductive tunneling devices. To prepare a Pb-Pbx Oy-Pb barrier the first lead film is placed in a vacuum chamber and charged to a negative potential with regard to the positive ions by fast electrons from the plasma charge. Oxygen gas molecules bombard the first lead film where they probably disassociate into two oxygen atoms. A surface reaction takes place which produces a lead-oxide insulating layer in the first lead film. After this lead-oxide layer has reached a predetermined thickness, the plasma is extinguished and the oxygen-lead reaction stops. Immediately after the oxide formation, a second lead layer is evaporated onto the oxide layer to form a tunneling barrier of the Josephson type. Instead of forming a lead-oxide insulating layer into the first lead film, polymerized organic molecules may be formed on the lead surface by the high energy bombardment.

    Abstract translation: 隧穿屏障，特别是超导隧道势垒（约瑟夫森屏障）在使用氧气辉光放电的低气压保持在真空室内制备，产生稳定和可再现的超导隧道装置。 为了制备Pb-Pbx Oy-Pb势垒，将第一引线膜放置在真空室中，并通过来自等离子体电荷的快速电子将正电荷充电至负电位。 氧气分子轰击第一个铅膜，在那里它们可能解离成两个氧原子。 发生在第一引线膜中产生氧化铅绝缘层的表面反应。 在该氧化铅层达到预定厚度之后，等离子体熄灭，氧 - 铅反应停止。 在氧化物形成之后，第二引线层在氧化层上蒸发形成约瑟夫森型隧道势垒。 代替将铅氧化物绝缘层形成到第一引线膜中，可以通过高能量轰击在引线表面上形成聚合的有机分子。

    Dynamic fault tolerant information-processing system
    2.
    发明授权
    Dynamic fault tolerant information-processing system 失效
    动态容错信息处理系统

    公开(公告)号：US3611324A

    公开(公告)日：1971-10-05

    申请号：US3611324D

    申请日：1969-12-29

    Applicant: TEXAS INSTRUMENTS INC

    Inventor： PRITCHARD JOHN P JR ,  SLAY BUFORD G JR

    IPC: G11C11/44 ,  G11C29/00 ,  G11C15/00 ,  H03K3/38

    CPC classification number: G11C29/70 ,  G11C11/44 ,  Y10S505/835

    Abstract: An associatively organized cryogenic information-processing system having a plurality of identical words, each word having a predetermined number of storage bits and a plurality of controlled registers, each register having one bit for each word. Each bit of one of the control registers, termed the status register, has three stable states. One of the states is a ground state which exists in the event of failure of that bit in the status register so that the status register will detect failure of its own bit. The failure modes of the remainder of the system are controlled such that the failure of any part of any word results in the corresponding bit of the status register reverting to the ground state. During operation, those words identified by the status register as being failed are excluded from use.

    Dynamic associative data processing system
    5.
    发明授权
    Dynamic associative data processing system 失效
    动态相关数据处理系统

    公开(公告)号：US3611314A

    公开(公告)日：1971-10-05

    申请号：US3611314D

    申请日：1969-09-09

    Applicant: TEXAS INSTRUMENTS INC

    Inventor： PRITCHARD JOHN P JR ,  MURRY HERSCHELL F

    IPC: G06F17/30 ,  G11B13/00

    CPC classification number: G06F17/30985

    Abstract: An associatively organized data processing system is disclosed. The bits of each data word are recorded radially on a magnetic disk by means of a separate read-write head for each bit track. Logic circuitry is provided for each read-write head to perform associative processing. Thus, all words in memory can be associatively processed after one revolution of the disk. The match and occupancy status of each work is determined by corresponding bits on an occupancy-status track and a matchstatus track. The status tracks are updated as each word is logically processed by means of spaced read and write heads and shift registers to delay the bits of status data before they are updated and recorded back on the disk in accordance with the associative processing of the words.

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