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    • 6. 发明公开
    • Method of eliminating short circuits in electrical circuitry
    • Verfahren zum Beseitigen vonKurzschlüssen在einer elektrischen Schaltung。
    • EP0169456A2
    • 1986-01-29
    • EP85108698.3
    • 1985-07-12
    • International Business Machines Corporation
    • Solomon, Joseph MichaelVarker, Kenneth James
    • H05K3/22
    • H05K3/0088H05K3/06H05K3/225H05K3/42H05K3/429H05K2203/0763H05K2203/1147H05K2203/175Y10S134/902
    • Method and apparatus is disclosed for eliminating short circuits on electrical circuitry, the circuitry being interconnected by a thru hole (12) on a substantially planar electrical board (10). The electrical board has two major surfaces, upper and lower. A first gas and liquid transmission device (30-53) is connected to the board to introduce etching gas and liquid into the thru hole. The device comprises a part that is adapted to surround the thru hole and seal the periphery thereof on one surface of the board. A second gas and liquid transmission device (58-82, 92-104) is connected to the board to remove the etching gas and liquid from the thru hole. This second device comprises a part (58) that is adapted to surround the thru hole and seal the periphery thereof on the other surface of the board. A vacuum system (104) is used to force gas and liquid to move through the thru hole from the first transmission device to the second transmission device, thereby etching and/or cleaning material from the thru hole.
      In another embodiment of the present invention there are provided transmission devices comprising a plurality of parts (53, 58) that are adapted to surround a plurality of thru holes and seal the peripheries thereof on both surfaces of the board.
    • 公开了用于消除电路上的短路的方法和装置,该电路通过基本上平面的电路板(10)上的通孔(12)互连。 电路板有两个主表面,上下两个。 第一气体和液体传输装置(30-53)连接到板上以将蚀刻气体和液体引入通孔中。 该装置包括适于围绕通孔并将其周边密封在板的一个表面上的部分。 第二气体和液体传输装置(58-82,92-104)连接到板上以从通孔去除蚀刻气体和液体。 第二装置包括适于围绕通孔并将其周边密封在板的另一表面上的部分(58)。 使用真空系统(104)来迫使气体和液体从第一传动装置穿过通孔移动到第二传动装置,从而从通孔中蚀刻和/或清洁材料。 在本发明的另一实施例中,提供了包括多个部件(53,58)的传动装置,其适于围绕多个通孔并将其周边密封在板的两个表面上。