FRAME MASK FOR SINGULATING WAFERS BY PLASMA ETCHING

    公开(公告)号:US20230154795A1

    公开(公告)日:2023-05-18

    申请号:US18054547

    申请日:2022-11-11

    CPC classification number: H01L21/78 H01L21/3086 H01L21/3085 H01L21/3081

    Abstract: The present disclosure relates to plasma dicing of wafer. More specifically, the present disclosure is directed to frame masks and methods for plasma dicing wafers utilizing frame masks. The frame mask includes a mask frame, wherein the mask frame includes a top ring mask support and a side ring mask support. A plurality of mask segments suspended from the top ring mask support by segment supports, the mask segments are configured to define dicing channels on a blank wafer. The frame mask is configured to removably sit onto a frame lift assembly in a plasma chamber of a plasma dicing tool, when fitted onto the frame lift assembly, the mask segments are disposed above a wafer on a wafer ring frame for plasma dicing. The mask frame is configured to enable flow of plasma therethrough to the wafer to etch the wafer to form dicing channels defined by the mask segments.

    Wafer adaptor for adapting different sized wafers

    公开(公告)号:US12165921B2

    公开(公告)日:2024-12-10

    申请号:US17723413

    申请日:2022-04-18

    Abstract: A wafer adaptor ring assembly for adapting an adapted sized wafer for plasma dicing by a plasma etch chamber designed for dicing a designed sized wafer, which is larger than the adapted sized wafer is disclosed. The wafer adaptor ring assembly includes a primary wafer ring designed for plasma dicing the designed sized wafer by the plasma, an adhesive sheet attached to a bottom surface of the primary wafer ring, and an adapted sized wafer disposed on the adhesive sheet between the primary wafer ring and the adapted sized wafer. A method for forming the wafer adaptor ring assembly is also disclosed.

    WAFER ADAPTOR FOR ADAPTING DIFFERENT SIZED WAFERS

    公开(公告)号:US20220331917A1

    公开(公告)日:2022-10-20

    申请号:US17723413

    申请日:2022-04-18

    Abstract: A wafer adaptor ring assembly for adapting an adapted sized wafer for plasma dicing by a plasma etch chamber designed for dicing a designed sized wafer, which is larger than the adapted sized wafer is disclosed. The wafer adaptor ring assembly includes a primary wafer ring designed for plasma dicing the designed sized wafer by the plasma, an adhesive sheet attached to a bottom surface of the primary wafer ring, and an adapted sized wafer disposed on the adhesive sheet between the primary wafer ring and the adapted sized wafer. A method for forming the wafer adaptor ring assembly is also disclosed.

    Semiconductor packages with electromagnetic interference shielding

    公开(公告)号:US10714431B2

    公开(公告)日:2020-07-14

    申请号:US16057773

    申请日:2018-08-07

    Abstract: Semiconductor packages having an electromagnetic interference (EMI) shielding layer and methods for forming the same are disclosed. The method includes providing a base carrier defined with an active region and a non-active region. A fan-out redistribution structure is formed over the base carrier. A die having elongated die contacts are provided. The die contacts corresponding to conductive pillars. The die contacts are in electrical communication with the fan-out redistribution structure. An encapsulant having a first major surface and a second major surface opposite to the first major surface is formed. The encapsulant surrounds the die contacts and sidewalls of the die. An electromagnetic interference (EMI) shielding layer is formed to line the first major surface and sides of the encapsulant. An etch process is performed after forming the EMI shielding layer to completely remove the base carrier and singulate the semiconductor package.

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