DIE-SUBSTRATE INTERFACE INCLUDING LOCKING FEATURES

    公开(公告)号:US20250015044A1

    公开(公告)日:2025-01-09

    申请号:US18346976

    申请日:2023-07-05

    Abstract: A die-attach process that creates a bond strength sufficient to hold a die to a substrate while it is handled before being permanently attached is disclosed. The die-attach process includes forming locking features in a metal layer of a substrate so a bond at the die-substrate interface is strengthened. The locking features may include a plurality of cavities or slots formed in a metal layer of the substrate. The cavities and slots can increase a surface area and provide anchor points for a die-attach film placed between the die and the substrate.

Patent Agency Ranking