CHIP PACKAGING STRUCTURE AND METHOD

    公开(公告)号:US20220149007A1

    公开(公告)日:2022-05-12

    申请号:US17047731

    申请日:2020-06-16

    Abstract: The present disclosure provides a chip packaging structure and method, using a back-to-back packaging structure, and realizing electrical connection between chips through TSV holes or cooperation between TSV and TMV holes, completely penetrating two chips. Thus, the TSV hole passing through a silicon material may not need to be formed in advance on the chips before bonding the chips, thereby the requirement of alignment accuracy of the chips can be reduced, and the process difficulty can be reduced. In addition, as the back-to-back packaging process is adopted, the heat dissipation efficiency of the chips can be improved, and the problem of circuit breakage due to materials with different expansion coefficients present between the chips can be avoided.

    FAN-OUT TYPE PACKAGE PREPARATION METHOD OF FAN-OUT TYPE PACKAGE

    公开(公告)号:US20230245944A1

    公开(公告)日:2023-08-03

    申请号:US17635437

    申请日:2021-07-28

    CPC classification number: H01L23/3675 H01L23/29 H01L21/56

    Abstract: A fan-out type package and a preparation method of the fan-out type package are provided. The fan-out type package has one or more chips having same or different functions and each having a back surface mounted in a chip mounting region of the heat dissipation sheet via the adhesive material layer, and a front surface covered by a temporary protection material; an adhesive material layer; a heat dissipation sheet; an encapsulation material layer formed by making an encapsulation material flow into and fill a gap between the temporary protection material and the heat dissipation sheet and/or cover a side of the heat dissipation sheet opposite to a side thereof mounted with the chip, and then removing the temporary protection material; a packaging circuit grown on the front surface of the chip, the encapsulation material, and the heat dissipation sheet; and a packaging circuit protection layer protecting the packaging circuit.

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