HYBRID BONDING OF SEMICONDUCTOR STRUCTURES TO ADVANCED SUBSTRATE PANELS

    公开(公告)号:US20240021571A1

    公开(公告)日:2024-01-18

    申请号:US17867027

    申请日:2022-07-18

    CPC classification number: H01L24/80 H01L21/486 H01L24/08 H01L25/0652

    Abstract: Methods for bonding semiconductor surfaces leverage hybrid bonding processes to enable heterogeneous integration architectures. In some embodiments, the methods may comprise forming a semiconductor structure on a silicon-based substrate with a first set of exposed conductive connections on a top surface of the semiconductor structure. The first set of exposed conductive connections having a pitch of less than approximately 10 microns. Forming an advanced rectangular substrate panel with a second set of exposed conductive connections. The second set of exposed conductive connections having a pitch of less than approximately 10 microns. Bonding a top surface of the semiconductor structure to a top surface of the advanced rectangular substrate panel using a hybrid bonding process to bond the semiconductor structure to the advanced rectangular substrate panel.

    Grain Structure Engineering for Metal Gapfill Materials

    公开(公告)号:US20250038137A1

    公开(公告)日:2025-01-30

    申请号:US18225286

    申请日:2023-07-24

    Abstract: A method for depositing copper onto a substrate includes grain engineering to control the internal structure of the copper. In some embodiments, the method comprises depositing a grain control layer conformally onto a copper seed layer in a structure on the substrate where the grain control layer is a non-conducting material, etching the grain control layer using a direct deep reactive ion etch (DRIE) process to remove portions of the grain control layer on horizontal surfaces within the structure, and depositing a copper material onto the structure such that at least one grain parameter of the copper material is controlled, at least in part, by a remaining portion of the grain control layer on vertical surfaces of the structure. In some embodiments, the deposited copper material in the structure has a grain orientation normal to a horizontal surface of the structure.

    METHODS FOR FORMING ALIGNMENT MARKS
    6.
    发明公开

    公开(公告)号:US20240069448A1

    公开(公告)日:2024-02-29

    申请号:US17900124

    申请日:2022-08-31

    CPC classification number: G03F7/70633 G03F9/7088

    Abstract: A method for forming alignment marks leverages pad density and critical dimensions (CDs). In some embodiments, the method includes forming first and second alignment marks on a first substrate and a second substrate where the alignment marks have a width within 5% of the associated CD of copper pads on the respective substrates and forming a first and second dummy patterns around the first and second alignment marks. The first and second dummy patterns have dummy pattern densities within 5% of the respective copper pad density of the first and second substrates and CDs within 5% of the respective copper pad CDs. In some embodiments, alignment marks with physical dielectric material protrusions and recesses on opposite substrate surfaces may further enhance bonding.

    METHODS AND APPARATUS FOR ALTERING LITHOGRAPHIC PATTERNS TO ADJUST PLATING UNIFORMITY

    公开(公告)号:US20230304183A1

    公开(公告)日:2023-09-28

    申请号:US18118336

    申请日:2023-03-07

    CPC classification number: C25D5/022 H01L21/2885 H01L22/12 C25D21/12 G03F1/70

    Abstract: Methods and apparatus for electroplating a substrate incorporate aspects of digital lithography and feedback from electroplating processes to improve characteristics of plating material based on die patterns. In some embodiments, a method of electroplating a substrate may include receiving a die design, forming a first lithographic pattern for a first substrate based on the die design, using a digital lithography process to pattern the first substrate with the first lithographic pattern, using an electroplating process to deposit material on the first substrate, using a metrology process to determine at least one parameter of the deposited material on the first substrate, and forming a second lithographic pattern from the first lithographic pattern for a second substrate based, at least in part, on the at least one parameter received directly from the metrology process on the first substrate by the digital lithographic process for the second substrate.

    METHODS FOR ELECTROCHEMICAL DEPOSITION OF ISOLATED SEED LAYER AREAS

    公开(公告)号:US20230086742A1

    公开(公告)日:2023-03-23

    申请号:US17482562

    申请日:2021-09-23

    Abstract: A method of depositing a metal material on an isolated seed layer uses a barrier layer as a conductive path for plating. The method may include depositing a barrier layer on a substrate wherein the barrier layer provides adhesion for seed layer material and inhibits migration of the seed layer material, forming at least one isolated seed layer area on the barrier layer on the substrate, and depositing the metal material on the at least one isolated seed layer area using an electrochemical deposition process wherein the barrier layer provides a current path to deposit the metal material on the at least one isolated seed layer area.

Patent Agency Ranking