Selective EMI Shielding Using Preformed Mask

    公开(公告)号:US20220157739A1

    公开(公告)日:2022-05-19

    申请号:US16950295

    申请日:2020-11-17

    Abstract: A semiconductor package has a substrate, a first component disposed over the substrate, an encapsulant deposited over the first component, and a second component disposed over the substrate outside the encapsulant. A metal mask is disposed over the second component. A shielding layer is formed over the semiconductor package. The metal mask after forming the shielding layer. The shielding layer is optionally formed on a contact pad of the substrate while a conic area above the contact pad that extends 40 degrees from vertical remains free of the encapsulant and metal mask while forming the shielding layer. Surfaces of the metal mask and encapsulant oriented toward the contact pad can be sloped. The metal mask can be disposed and removed using a pick-and-place machine.

    Semiconductor Device and Method of Heat Dissipation Using Graphene

    公开(公告)号:US20240014093A1

    公开(公告)日:2024-01-11

    申请号:US17810901

    申请日:2022-07-06

    CPC classification number: H01L23/3672 H01L23/373 H01L23/4334

    Abstract: A semiconductor device has a first substrate and electrical component disposed over the first substrate. A graphene layer is disposed over the electrical component, and a thermal interface material is disposed between the graphene layer. A heat sink is disposed over the thermal interface material. The graphene layer, in combination with the thermal interface material, aids with the heat transfer between the electrical component and heat sink. The graphene layer may be disposed over a second substrate made of copper. An encapsulant is deposited over the first substrate and around the electrical component and graphene substrate. The thermal interface material and heat sink may extend over the encapsulant. The heat sink can have vertical or angled extensions from the horizontal portion of the heat sink down to the substrate. The heat sink can extend over multiple modules.

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