PACKAGE SUBSTRATE Z-DISAGGREGATION WITH LIQUID METAL INTERCONNECTS

    公开(公告)号:US20220399263A1

    公开(公告)日:2022-12-15

    申请号:US17345912

    申请日:2021-06-11

    申请人: Intel Corporation

    摘要: A z-disaggregated integrated circuit package substrate assembly comprises a first substrate component (a coreless patch), a second substrate component (a core patch), and a third substrate component (an interposer). The coreless patch comprises thinner dielectric layers and higher density routing and can comprise an embedded bridge to allow for communication between integrated circuit dies attached to the coreless patch. The core layer acts as a middle layer interconnect between the coreless patch and the interposer and comprises liquid metal interconnects to connect the core patch physically and electrically to the coreless patch and the interposer. Core patch through holes comprise liquid metal plugs. Some through holes can be surrounded by and coaxially aligned with magnetic plugs to provide improved power signal delivery. The interposer comprises thicker dielectric layers and lower density routing. The substrate assembly can reduce cost and provide improved overall yield and electrical performance relative to monolithic substrates.