1.
    发明专利
    未知

    公开(公告)号:DE102004029765A1

    公开(公告)日:2006-03-16

    申请号:DE102004029765

    申请日:2004-06-21

    Abstract: A packaged electronic component includes a substrate with an upper layer, a lower layer and a middle layer between the upper layer and the lower layer. The middle layer is formed from a first material that is more flexible than the material of the upper layer and the material of the lower layer. An electronic component, such as a semiconductor chip, can be adhered over the upper layer of the substrate. Solder balls can be adhered over the lower layer of the substrate.

    4.
    发明专利
    未知

    公开(公告)号:DE10335182B4

    公开(公告)日:2007-03-01

    申请号:DE10335182

    申请日:2003-07-30

    Abstract: The invention relates to an arrangement for improving module reliability, in particular the reliability of soldered connections on semiconductor products with BGA or BGA-like components to a substrate on which chips are attached by a die attach material, in particular substrate-based IC packages, solder balls mounted on the side that is opposite from the chip, on contact pads of the substrate on a patterned copper foil, being provided for the electrical connection to printed circuit boards, and the chip and the substrate on the chip side being encapsulated with a mold cap. With the invention, it is intended to provide an arrangement for improving module reliability with which stress acting on the solder balls during alternating thermal loading is reduced. According to the invention, an intermediate layer (3) which consists of a compliant or flexible material is arranged at least between the contact pads (2) and the substrate (1) or the printed circuit board.

    7.
    发明专利
    未知

    公开(公告)号:DE10335182A1

    公开(公告)日:2005-03-10

    申请号:DE10335182

    申请日:2003-07-30

    Abstract: The invention relates to an arrangement for improving module reliability, in particular the reliability of soldered connections on semiconductor products with BGA or BGA-like components to a substrate on which chips are attached by a die attach material, in particular substrate-based IC packages, solder balls mounted on the side that is opposite from the chip, on contact pads of the substrate on a patterned copper foil, being provided for the electrical connection to printed circuit boards, and the chip and the substrate on the chip side being encapsulated with a mold cap. With the invention, it is intended to provide an arrangement for improving module reliability with which stress acting on the solder balls during alternating thermal loading is reduced. According to the invention, an intermediate layer (3) which consists of a compliant or flexible material is arranged at least between the contact pads (2) and the substrate (1) or the printed circuit board.

    8.
    发明专利
    未知

    公开(公告)号:DE102004029584A1

    公开(公告)日:2006-01-12

    申请号:DE102004029584

    申请日:2004-06-18

    Abstract: An arrangement increases the reliability of substrate-based Ball-Grid-Array (BGA) packages, with a die (chip) that is mounted on a substrate and electrically connected to interconnects of the substrate and for which the substrate is provided with solder balls arranged in a predetermined grid. The arrangement is particularly simple to realize and effective for increasing the reliability of substrate-based Ball-Grid-Array packages. This is achieved by a laminate layer provided with openings for receiving the solder balls at the positions of ball pads being laminated on the side of the substrate that is provided with the interconnects.

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