MICROELECTRONIC ASSEMBLIES HAVING BACKSIDE DIE-TO-PACKAGE INTERCONNECTS

    公开(公告)号:US20230073026A1

    公开(公告)日:2023-03-09

    申请号:US17470189

    申请日:2021-09-09

    Abstract: Microelectronic assemblies, related devices and methods, are disclosed herein. In some embodiments, a microelectronic assembly may include a first die, having a first surface and an opposing second surface, in a first layer, and including a first metallization stack at the first surface; a device layer on the first metallization stack; a second metallization stack on the device layer; and an interconnect on the first surface of the die electrically coupled to the first metallization stack; a conductive pillar in the first layer; and a second die, having a first surface and an opposing second surface, in a second layer on the first layer, wherein the first surface of the second die is coupled to the conductive pillar and to the second surface of the first die by a hybrid bonding region.

    BACK-SIDE REVEAL FOR POWER DELIVERY TO BACKEND MEMORY

    公开(公告)号:US20220415904A1

    公开(公告)日:2022-12-29

    申请号:US17355449

    申请日:2021-06-23

    Abstract: Embodiments of the present disclosure provide power to backend memory of an IC device from the back side of the device. An example IC device with back-side power delivery for backend memory includes a frontend layer with a plurality of frontend components such as frontend transistors, a backend layer (that may include a plurality of layers) with backend memory (e.g., with one or more eDRAM arrays), and a back-side power delivery structure with a plurality of back-side interconnects electrically coupled to the backend memory, where the frontend layer is between the back-side power delivery structure and the backend layer.

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