Flip-chip device
    1.
    发明授权

    公开(公告)号:US11417622B2

    公开(公告)日:2022-08-16

    申请号:US17071432

    申请日:2020-10-15

    Abstract: Disclosed are devices, fabrication methods and design rules for flip-chip devices. Aspects include an apparatus including a flip-chip device. The flip-chip device including a die having a plurality of under bump metallizations (UBMs). A package substrate having a plurality of bond pads is also included. A plurality of solder joints coupling the die to the package substrate. The plurality of solder joints are formed from a plurality of solder bumps plated on the plurality of UBMs, where the plurality of solder bumps are directly connected to the plurality of bond pads.

    Integrated circuit (IC) packages employing a thermal conductive package substrate with die region split, and related fabrication methods

    公开(公告)号:US11437335B2

    公开(公告)日:2022-09-06

    申请号:US16921152

    申请日:2020-07-06

    Abstract: Integrated circuit (IC) packages employing a thermal conductive semiconductor package substrate with die region split and related fabrication methods are disclosed. The package substrate includes a die split where metal contacts in one or more dielectric layers of the package substrate underneath the IC die(s) are thicker (e.g., in a core die region) than other metal contacts (e.g., in a peripheral die region) in the dielectric layer. This facilitates higher thermal dissipation from the IC die(s) through the thicker metal contacts in the package substrate. Cross-talk shielding of the package substrate may not be sacrificed since thinner metal contacts of the package substrate that carry high speed signaling can be of lesser thickness than the thicker metal contacts that provide higher thermal dissipation. The dielectric layer in the package substrate may also include dielectric materials having different thermal conductivities to further facilitate thermal dissipation and/or desired electrical or mechanical characteristics.

    INTEGRATED CIRCUIT (IC) PACKAGES EMPLOYING A THERMAL CONDUCTIVE PACKAGE SUBSTRATE WITH DIE REGION SPLIT, AND RELATED FABRICATION METHODS

    公开(公告)号:US20210242160A1

    公开(公告)日:2021-08-05

    申请号:US16921152

    申请日:2020-07-06

    Abstract: Integrated circuit (IC) packages employing a thermal conductive semiconductor package substrate with die region split and related fabrication methods are disclosed. The package substrate includes a die split where metal contacts in one or more dielectric layers of the package substrate underneath the IC die(s) are thicker (e.g., in a core die region) than other metal contacts (e.g., in a peripheral die region) in the dielectric layer. This facilitates higher thermal dissipation from the IC die(s) through the thicker metal contacts in the package substrate. Cross-talk shielding of the package substrate may not be sacrificed since thinner metal contacts of the package substrate that carry high speed signaling can be of lesser thickness than the thicker metal contacts that provide higher thermal dissipation. The dielectric layer in the package substrate may also include dielectric materials having different thermal conductivities to further facilitate thermal dissipation and/or desired electrical or mechanical characteristics.

    Flip-chip flexible under bump metallization size

    公开(公告)号:US11557557B2

    公开(公告)日:2023-01-17

    申请号:US16917295

    申请日:2020-06-30

    Abstract: Disclosed is a flip-chip device. The flip-chip device includes a die having a plurality of under bump metallizations (UBMs); and a package substrate having a plurality of bond pads. The plurality of UBMs include a first set of UBMs having a first size and a first minimum pitch and a second set of UBMs having a second size and a second minimum pitch. The first set of UBMs and the second set of UBMs are each electrically coupled to the package substrate by a bond-on-pad connection.

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