VARIABLE BALL HEIGHT ON BALL GRID ARRAY PACKAGES BY SOLDER PASTE TRANSFER

    公开(公告)号:US20190096838A1

    公开(公告)日:2019-03-28

    申请号:US16198429

    申请日:2018-11-21

    Abstract: BGA packages with a spatially varied ball height, molds and techniques to form such packages. A template or mold with cavities may be pre-fabricated to hold solder paste material applied to the mold, for example with a solder paste printing process. The depth and/or diameter of the cavities may be predetermined as a function of spatial position within the mold working surface area. Mold cavity dimensions may be specified corresponding to package position to account for one or more pre-existing or expected spatial variations in the package, such as a package-level warpage measurement. Any number of different ball heights may be provided. The molds may be employed in a standardize process that need not be modified with each change in the mold.

    THROUGH-MOLD STRUCTURES
    134.
    发明申请

    公开(公告)号:US20180277458A1

    公开(公告)日:2018-09-27

    申请号:US15992830

    申请日:2018-05-30

    Abstract: Devices and methods include an electronic package having a through-mold interconnect are shown herein. Examples of the electronic package include a package assembly. The package assembly including a substrate having a first substrate surface. The first substrate surface including a conductive layer attached to the first substrate surface. The package assembly includes a die communicatively coupled to the conductive layer and a contact block. The contact block including a first contact surface on one end of the contact block, a second contact surface on an opposing side of the contact block, and a contact block wall extended therebetween. The contact block includes a conductive material. The first contact surface is coupled to the package assembly with a joint extended partially up the contact block wall. The electronic package further includes an overmold covering portions of the substrate, conductive layer, and die. The second contact surface of the contact block is exposed through the overmold.

    Magnetic particle embedded flex or printed flex for magnetic tray or electro-magnetic carrier

    公开(公告)号:US10070520B2

    公开(公告)日:2018-09-04

    申请号:US14998263

    申请日:2015-12-26

    Abstract: In accordance with disclosed embodiments, there are provided methods, systems, and apparatuses for implementing a magnetic particle embedded flexible substrate, a printed flexible substrate for a magnetic tray, or an electro-magnetic carrier for magnetized or ferromagnetic flexible substrates. For instance, in accordance with one embodiment, there are means disclosed for fabricating a flexible substrate having one or more electrical interconnects to couple with leads of an electrical device; integrating magnetic particles or ferromagnetic particles into the flexible substrate; supporting the flexible substrate with a carrier plate during one or more manufacturing processes for the flexible substrate, in which the flexible substrate is held flat against the carrier plate by an attractive magnetic force between the magnetic particles or ferromagnetic particles integrated with the flexible substrate and a complementary magnetic attraction of the carrier plate; and removing the flexible substrate from the carrier plate subsequent to completion of the one or more manufacturing processes for the flexible substrate. Other related embodiments are disclosed.

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