14.
    发明专利
    未知

    公开(公告)号:AT481734T

    公开(公告)日:2010-10-15

    申请号:AT03798966

    申请日:2003-09-15

    Applicant: IBM

    Abstract: In an integrated circuit package employing solder bump technology, a metal layer placed on the surface of a substrate below an array of bonding pads is split and displaced from its axis at selected locations to preserve electrical continuity, but to also lower the height of an insulating solder mask layer at those locations.

    17.
    发明专利
    未知

    公开(公告)号:DE69800514D1

    公开(公告)日:2001-03-08

    申请号:DE69800514

    申请日:1998-05-26

    Applicant: IBM

    Inventor: MEMIS IRVING

    Abstract: A circuit board is provided which has contacts on the surface arrayed to engage contact pads on a chip carrier bounded by a grid. A plurality of primary through holes are provided in the circuit board location within the grid in an interstitial array and electrically connected to respective first chip contact pads thereabove. A plurality of secondary through holes are provided which are located outside the grid and electrically connected to respective second chip contact pads.

    18.
    发明专利
    未知

    公开(公告)号:DE69220333D1

    公开(公告)日:1997-07-17

    申请号:DE69220333

    申请日:1992-10-19

    Applicant: IBM

    Abstract: An electronic package assembly (10) wherein a low profile package is soldered to an organic (e.g., epoxy resin) substrate (11) (e.g., printed circuit board), the projecting conductive leads (21) of the package and the solder (53) which substantially covers these leads (and respective conductors on the substrate) having been substantially covered with encapsulant material (61) (e.g., polymer resin) to provide reinforcement for the solder-lead connections. The encapsulant material is dispensed about the solder and lead joints following solder reflow and solidification so as to substantially surround the solder and any portions of the leads not covered with solder. The invention has particular useful with thin, small outline package (TSOP) structures which occupy a minimum of height on the substrate surface.

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