ELECTROLESS PLATING METHODS
    2.
    发明申请

    公开(公告)号:US20240404879A1

    公开(公告)日:2024-12-05

    申请号:US18492867

    申请日:2023-10-24

    Abstract: Implementations of a method of electroless deposition may include providing a semiconductor substrate including a first largest planar surface and a second largest planar surface; forming a backmetal layer on the second largest planar surface; attaching a tape over the backmetal layer; and electroless depositing a metal layer on a pad included on the first largest planar surface. The method may include, after electroless depositing, removing the tape; and after removing the tape, baking the semiconductor substrate.

    PLATING STACK
    5.
    发明申请

    公开(公告)号:US20230069914A1

    公开(公告)日:2023-03-09

    申请号:US17799957

    申请日:2021-02-03

    Abstract: In the method for producing a plating stack, a plating layer A mainly composed of a second metal is deposited on an object to be plated S mainly composed of a first metal by a substitution reaction, then a plating layer B mainly composed of a third metal is deposited on the plating layer A, and then a plating layer C mainly composed of the second metal, the third metal, or a fourth metal is deposited on the plating layer B by a redox reaction. A concrete configuration of plating layers includes, for example, the plating layer A is gold, platinum or silver, the plating layer B is palladium, and the plating layer C is palladium.

    PLATING STACK
    6.
    发明申请

    公开(公告)号:US20230065609A1

    公开(公告)日:2023-03-02

    申请号:US17799962

    申请日:2021-02-03

    Abstract: The problem of the present invention is to provide a plating stack (a stack of plating films) for applying on surface of conductor circuits or the like, the plating stack can maintain high bond strength when solder is bonded on that and can be produced stably.
    In the method for producing a plating stack of the present invention, a plating layer A mainly composed of a second metal is deposited on an object to be plated S mainly composed of a first metal by a substitution reaction, then a plating layer B mainly composed of palladium is deposited on the plating layer A, and then a plating layer C mainly composed of nickel is deposited on the plating layer B by a redox reaction. The first metal is, for example, copper. The second metal is, for example, gold, platinum or silver.

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