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    Curbside circuitry for interactive communication services
    1.
    发明公开
    Curbside circuitry for interactive communication services 失效
    Vorfeldabschlussschaltungfürinteraktive Kommunikationsdienstleistungen

    公开(公告)号：EP0766474A1

    公开(公告)日：1997-04-02

    申请号：EP96306742.6

    申请日：1996-09-17

    申请人： AT&T Corp.

    发明人： Chen, Howard Zehua ,  Tai, King Lien ,  Johnson, Michael Gunnar

    IPC分类号： H04N7/173

    CPC分类号： H04N7/17318

    摘要： Only one or only a few channels are sent at a time from circuitry located in a curbside box (15), via link (22) such as either a coaxial or a fiber cable, into a customer's home TV set (14) or personal computer. However, many more than a few channels are delivered to the curbside box, via a line (46,47) such as a fiber or a coaxial cable, from a central office (36) or a central bank (37) of paid video-movies to be selected by the customers. Thus whereas the link from the central office or central bank is relatively broad-band (e.g., 500 MHz to 1,000 MHz), the cable from the curbside to the home (or any other kind of building) can be relatively narrow-band (e.g., 5 MHz to 50 MHz). The curbside box serves a multitude of homes -- a separate (narrow-band) cable running to each home from the (same) curbside switch. Each channel can be a free radio or free TV channel, a stored or an on-line newspaper pay channel, or a pay TV channel, or pay-per-view channel (i.e., the customer must give advance notice per view, and may begin viewing in the middle of a selected program, or may come in at the beginning of a selected program with a short delay, depending on the sender's arrangement). Requests from each TV set in each home (e.g., initiated by means of a hand-held remote control infra-red sending device (11)) can be sent to the curbside box from the home along a link (23) such as a wire or along the same curbside-to-home cable itself. In addition, billing of customers can be accomplished by means of another link (50) connecting a junction in the wire or in the curbside-to-home cable to one or more remote billing centers (40).

    摘要翻译： 一次只有一个或几个通道从位于路边箱（15）中的电路经由诸如同轴或光纤电缆的链路（22）发送到客户的家用电视机（14）或个人计算机 。 然而，通过诸如光纤或同轴电缆的线路（46,47）将许多不止一些的通道从中央局（36）或付费视频通信的中央银行（37）传送到路边箱， 电影由客户选择。 因此，来自中心局或中央银行的链路相对宽带（例如，500MHz至1,000MHz），从路边到家庭（或任何其他类型的建筑物）的电缆可以是相对窄带的（例如， ，5MHz至50MHz）。 路边箱子服务于许多家庭 - 一个单独的（窄带）电缆，从（相同）路边交换机的每个家庭运行。 每个频道可以是免费的收音机或免费电视频道，存储的或在线的报纸付费频道，或付费电视频道或按次付费频道（即客户必须按照每个视图提前通知，并且可能会 在所选程序的中间开始查看，或者可以根据发送者的安排，在所选程序的开始时以短的延迟进入。 每个家庭中的每个电视机的请求（例如，通过手持遥控红外发射设备（11）发起）可以沿着诸如线路的链路（23）从家庭发送到路边箱 或沿着相同的路边到家庭电缆本身。 此外，可以通过将线路中的路口或路边到家庭电缆连接到一个或多个远程计费中心（40）的另一个链路（50）来实现客户的计费。

    Debondable metallic bonding method
    2.
    发明公开
    Debondable metallic bonding method 失效
    Verfahren zum wiederebindbaren metallischen Verbinden。

    公开(公告)号：EP0587337A1

    公开(公告)日：1994-03-16

    申请号：EP93306643.3

    申请日：1993-08-20

    申请人： AT&T Corp.

    发明人： Katz, Avishay ,  Lee, Chien-Hsun ,  Tai, King Lien

    IPC分类号： B23K1/018

    CPC分类号： G01R1/04 ,  H01L24/11 ,  H01L24/13 ,  H01L24/81 ,  H01L2224/05624 ,  H01L2224/1308 ,  H01L2224/131 ,  H01L2224/13111 ,  H01L2224/13116 ,  H01L2224/13144 ,  H01L2224/13147 ,  H01L2224/13166 ,  H01L2224/13171 ,  H01L2224/81193 ,  H01L2924/00013 ,  H01L2924/01322 ,  Y10T29/49149 ,  H01L2924/00014 ,  H01L2924/0105 ,  H01L2924/01029 ,  H01L2924/014 ,  H01L2224/13099 ,  H01L2224/29099

    摘要： One or more metallized wiring or chip terminals (8,9) of an electronic device (10), such as an integrated circuit chip or a laser chip, in one embodiment are temporarily bonded to one or more metallized substrate pads of a wiring substrate (10), as for the purpose of electrically testing the electronic device. The composition of the metallized chip terminals is suitably different from that of the metallized substrate pads. The pads and terminals are aligned and electrically connected together with solder located between them under pressure and a temperature above the melting point of the solder. The solder is cooled, and electrical tests of the electronic device are performed by means of electrical access from testing circuitry to the chip terminals through the substrate pads. Then the solder is heated again above its melting point while being immersed in a liquid flux, whereby the liquid solder wets the metallized chip terminals but not the metallized substrate pads, and the device is gently pulled away by mechanical forces (F) from the wiring substrate and is cooled thereafter. This substrate can thereafter be reused for testing other electronic devices that have similarly suitably metallized terminals.
    In another embodiment, testing can be performed or not as may be desired; and, as for the purpose of chip operation as an integrated circuit or laser, the chip can be allowed to remain permanently bonded to the substrate in the form of a heat-sinking or heat-spreading submount, or it can be allowed to remain only temporarily bonded to the submount and subsequently pulled away from the submount for the purpose of reuse of the submount for another chip.

    摘要翻译： 在一个实施例中，诸如集成电路芯片或激光芯片的电子器件（10）的一个或多个金属化布线或芯片端子（8,9）暂时地接合到布线基板的一个或多个金属化的基板焊盘 10），用于电子测试电子设备的目的。 金属化芯片端子的组成与金属化衬底焊盘的组成适当不同。 焊盘和端子在压力和高于焊料熔点的温度下对齐并电连接在一起，焊料位于它们之间。 焊料被冷却，电子设备的电气测试通过从测试电路通过衬底焊盘到芯片端子的电接口进行。 然后将焊料再次加热到其熔点以上，同时浸入液体焊剂中，由此液体焊料润湿金属化的芯片端子而不是金属化的衬底焊盘，并且通过机械力（F）从布线轻轻地将器件拉开 然后冷却。 该衬底此后可重新用于测试具有类似适当金属化端子的其它电子器件。 在另一个实施例中，可以根据需要进行或不执行测试; 并且，对于作为集成电路或激光器的芯片操作的目的，可以使芯片以散热或散热底座的形式保持永久地结合到基板，或者可以仅允许该芯片保持 临时绑定到基座并随后从基座上拉出，以便重新使用另一个芯片的基座。

    Optical assembly comprising optical fiber coupling means
    6.
    发明公开
    Optical assembly comprising optical fiber coupling means 失效
    包含光纤耦合装置的光学组件

    公开(公告)号：EP0413489A3

    公开(公告)日：1992-01-08

    申请号：EP90308649.4

    申请日：1990-08-06

    申请人： AT&T Corp.

    发明人： Pimpinella, Richard Joseph ,  Segelken, John Maurice ,  Tai, King Lien ,  Thompson, Ross Job

    IPC分类号： G02B6/42

    CPC分类号： G02B6/4292 ,  G02B6/4202 ,  G02B6/4204 ,  G02B6/421

    摘要： Disclosed is a novel "hermetic" optical assembly. A radiation-­transmissive member (10) seals an aperture (22) in the assembly housing. The member comprises two major surfaces and a recess (12) that extends from one surface towards the other, with a "septum" (14) between the bottom of the recess and the other surface. An optical or opto-electronic device (23) typically is mounted on the inside surface of the member, and the end of an optical fiber is maintained outside of the assembly in coupling relationship with the device. In a currently preferred embodiment the recess extends from the outward-facing surface of the member and serves to position the end of the optical fiber with respect to a device mounted in a "well" (11) in the inward-facing surface of the member. In another embodiment, the outward facing surface of the member comprises geometrical features (e.g., recesses) that mate with corresponding features (e.g., protrusions) on a guide plate that serves to position the ends of a multiplicity of fibers with respect to devices mounted on the bottom of a recess extending from the inward-facing surface of the radiation-transmissive member. In all embodiments radiation is transmitted through the septum. In preferred embodiments the radiation-transmissive member is (100) Si, with the recess (and other features) produced by means comprising photolithography and anisotropic etching.