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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