MULTI-DIE INDUCTORS WITH COUPLED THROUGH-SUBSTRATE VIA CORES

    公开(公告)号:US20180323144A1

    公开(公告)日:2018-11-08

    申请号:US15584881

    申请日:2017-05-02

    Inventor: Kyle K. Kirby

    CPC classification number: H01L23/5227 H01L23/481

    Abstract: A semiconductor device comprising first and second dies is provided. The first die includes a first through-substrate via (TSV) extending at least substantially through the first die and a first substantially helical conductor disposed around the first TSV. The second die includes a second TSV coupled to the first TSV and a second substantially helical conductor disposed around the second TSV. The first substantially helical conductor is configured to induce a change in a magnetic field in the first and second TSVs in response to a first changing current in the first substantially helical conductor, and the second substantially helical conductor is configured to have a second changing current induced therein in response to the change in the magnetic field in the second TSV.

    Grindable heat sink for multiple die packaging

    公开(公告)号:US12300570B2

    公开(公告)日:2025-05-13

    申请号:US17583038

    申请日:2022-01-24

    Abstract: A semiconductor package can include a semiconductor die stack including a top die and one or more core dies below the top die. The semiconductor package can further include a metal heat sink plated on a top surface of the top die and have a plurality of side surfaces coplanar with corresponding ones of a plurality of sidewalls of the semiconductor die stack. A molding can surround the stack of semiconductor dies and the metal heat sink, the molding including a top surface coplanar with an exposed upper surface of the metal heat sink. The top surface of the molding and the exposed upper surface of the metal heat sink are both mechanically altered. For example, the metal heat sink and the molding can be simultaneously ground with a grinding disc and can show grinding marks as a result.

Patent Agency Ranking