BONDING STRUCTURES OF INTEGRATED CIRCUIT DEVICES AND METHOD FORMING THE SAME

    公开(公告)号:US20240371804A1

    公开(公告)日:2024-11-07

    申请号:US18775442

    申请日:2024-07-17

    Abstract: A method includes forming a conductive pad over an interconnect structure of a wafer, forming a capping layer over the conductive pad, forming a dielectric layer covering the capping layer, and etching the dielectric layer to form an opening in the dielectric layer. The capping layer is exposed to the opening. A wet-cleaning process is then performed on the wafer. During the wet-cleaning process, a top surface of the capping layer is exposed to a chemical solution used for performing the wet-cleaning process. The method further includes depositing a conductive diffusion barrier extending into the opening, and depositing a conductive material over the conductive diffusion barrier.

    Heterogeneous Dielectric Bonding Scheme

    公开(公告)号:US20220344301A1

    公开(公告)日:2022-10-27

    申请号:US17457704

    申请日:2021-12-06

    Abstract: A method includes putting a first package component into contact with a second package component. The first package component comprises a first dielectric layer including a first dielectric material, and the first dielectric material is a silicon-oxide-based dielectric material. The second package component includes a second dielectric layer including a second dielectric material different from the first dielectric material. The second dielectric material comprises silicon and an element selected from the group consisting of carbon, nitrogen, and combinations thereof. An annealing process is performed to bond the first dielectric layer to the second dielectric layer.

    CARRIER WAFER DEBONDING PROCESS AND METHOD

    公开(公告)号:US20250132150A1

    公开(公告)日:2025-04-24

    申请号:US18582070

    申请日:2024-02-20

    Abstract: A method includes forming a first de-bond structure over a first substrate, where forming the first de-bond structure includes depositing a first de-bond layer over the first substrate, depositing a first silicon layer over the first de-bond layer, depositing a second de-bond layer over the first silicon layer, and depositing a second silicon layer over the second de-bond layer, epitaxially growing a first multi-layer stack over the first de-bond structure, bonding the first multi-layer stack to a second multi-layer stack, and performing a first laser annealing process to ablate the first silicon layer and portions of the first de-bond layer and the second de-bond layer in order to de-bond the first substrate from the first multi-layer stack.

    Through-Substrate Vias with Improved Connections

    公开(公告)号:US20210125900A1

    公开(公告)日:2021-04-29

    申请号:US17142190

    申请日:2021-01-05

    Abstract: A device includes a substrate, and a plurality of dielectric layers over the substrate. A plurality of metallization layers is formed in the plurality of dielectric layers, wherein at least one of the plurality of metallization layers comprises a metal pad. A through-substrate via (TSV) extends from the top level of the plurality of the dielectric layers to a bottom surface of the substrate. A deep conductive via extends from the top level of the plurality of dielectric layers to land on the metal pad. A metal line is formed over the top level of the plurality of dielectric layers and interconnecting the TSV and the deep conductive via.

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