BARRIER STRUCTURES FOR UNDERFILL CONTAINMENT

    公开(公告)号:US20210249322A1

    公开(公告)日:2021-08-12

    申请号:US16788186

    申请日:2020-02-11

    Abstract: An integrated circuit assembly may be formed comprising an electronic substrate, a first and second integrated circuit device each having a first surface, a second surface, at least one side extending between the first and second surface, and an edge defined at an intersection of the second surface and the at least one side of each respective integrated circuit device, wherein the first surface of each integrated circuit device is electrically attached to the electronic substrate, an underfill material between the first surface of each integrated circuit device and the electronic substrate, and between the sides of the first and second integrated circuit devices, and at least one barrier structure adjacent at least one of the edge of first integrated circuit device and the edge of the second integrated circuit device, wherein the underfill material abuts the at least one barrier structure.

    Hydrophobic feature to control adhesive flow

    公开(公告)号:US12130482B2

    公开(公告)日:2024-10-29

    申请号:US17132851

    申请日:2020-12-23

    CPC classification number: G02B6/4239 G02B6/4212 G02B6/423 G02B6/426

    Abstract: Embodiments described herein may be related to apparatuses, processes, and techniques related to hydrophobic features to block or slow the spread of epoxy. These hydrophobic features are placed either on a die surface or on a substrate surface to control epoxy spread between the die in the substrate to prevent formation of fillets. Packages with these hydrophobic features may include a substrate, a die with a first side and a second side opposite the first side, the second side of the die physically coupled with a surface of the substrate, and a hydrophobic feature coupled with the second side of the die or the surface of the substrate to reduce a flow of epoxy on the substrate or die. In embodiments, these hydrophobic features may include a chemical barrier or a laser ablated area on the substrate or die. Other embodiments may be described and/or claimed.

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