DEVICE FOR HOLDING A PACKAGE SUBSTRATE WITH REDUCED WARPAGE

    公开(公告)号:US20240347373A1

    公开(公告)日:2024-10-17

    申请号:US18636304

    申请日:2024-04-16

    IPC分类号: H01L21/687 H01L21/68

    CPC分类号: H01L21/68785 H01L21/68

    摘要: A device for holding a package substrate is provided. The device comprises: a lower jig comprising a base material, and magnets embedded within the base material; and an upper jig comprising a frame and a grid pattern inside the frame, wherein the frame has a skirt portion that defines a gap between the lower jig and the grid pattern to accommodate the package substrate, and wherein the grid pattern is attractable by the magnets such that when the upper jig is placed on the lower jig to accommodate the package substrate the grid pattern is in contact with the package substrate to apply a pressure to the package substrate due to a magnetic interaction between the magnets and the grid pattern.