Process for forming a transition zone terminated superconformal filling

    公开(公告)号:US10508358B2

    公开(公告)日:2019-12-17

    申请号:US15489089

    申请日:2017-04-17

    Abstract: Forming a transition zone terminated superconformal filling in a recess includes: providing an electrodeposition composition including: a metal electrolyte including a plurality of metal ions, solvent, and suppressor; providing the article including: a field surface and the recess that includes a distal position and a proximate position; exposing the recess to the electrodeposition composition; potentiodynamically controlling an electric potential of the recess with a potential wave form; bifurcating the recess into an active metal deposition region and a passive region; forming a transition zone; decreasing the electric potential of the recess by the potential wave form; progressively moving the transition zone closer to the field surface and away from the distal position; and reducing the metal ions and depositing the metal in the active metal deposition region and not in the passive region to form the transition zone terminated superconformal filling in the recess of the substrate.

    METHODS OF FORMING SEMICONDUCTOR PACKAGES WITH BACK SIDE METAL

    公开(公告)号:US20190333891A1

    公开(公告)日:2019-10-31

    申请号:US15965081

    申请日:2018-04-27

    Inventor: Eiji KUROSE

    Abstract: Implementations of a method of forming semiconductor packages may include: providing a wafer having a plurality of devices, etching one or more trenches on a first side of the wafer between each of the plurality of devices, applying a molding compound to the first side of the wafer to fill the one or more trenches; grinding a second side of the wafer to a desired thickness, and exposing the molding compound included in the one or more trenches. The method may include etching the second side of the wafer to expose a height of the molding compound forming one or more steps extending from the wafer, applying a back metallization to a second side of the wafer, and singulating the wafer at the one or more steps to form a plurality of semiconductor packages. The one or more steps may extend from a base of the back metallization.

    Machine suitable for plating a cavity of a semi-conductive or conductive substrate such as a through via structure

    公开(公告)号:US10460945B2

    公开(公告)日:2019-10-29

    申请号:US14358659

    申请日:2012-11-19

    Applicant: ALCHIMER

    Inventor: Frederic Raynal

    Abstract: The invention relates to a machine (1) adapted to metallize a cavity of a semi-conductive or conductive substrate such as a structure of the through silicon via type, according to a metallization process comprising the steps consisting of: a) depositing an insulating dielectric layer in the cavity, b) depositing a barrier layer to diffusion of the filling metal, c) filling the cavity by electrodeposition of metal, preferably copper, and d) carrying out annealing of the substrate, characterized in that it comprises a series of wet-processing modules (10-60) configured to conduct steps a), b) and c) by wet-processing in a chemical bath (B) and at least one additional module (70) adapted to conduct annealing step d) of the substrate (S) such that the machine (1) is capable of executing the entire metallization process of the cavity.

    PLATING APPARATUS, PLATING METHOD, AND RECORDING MEDIUM

    公开(公告)号:US20190309436A1

    公开(公告)日:2019-10-10

    申请号:US16307908

    申请日:2017-04-14

    Abstract: There are provided a plating apparatus and a plating method that allow determining an appropriate replacement timing of a diaphragm. The plating apparatus includes an anode bath, a cathode bath, a diaphragm, an analyzer, and a control device. The anode bath holds a plating solution and an insoluble anode. The cathode bath holds a plating solution containing an additive and a substrate. The diaphragm separates the plating solution held in the anode bath from the plating solution held in the cathode bath. The analyzer is configured to analyze a concentration of the additive in the plating solution in the cathode bath at every predetermined time interval. The control device is configured to calculate an actual consumption of the additive during the predetermined period based on the concentration of the additive analyzed at the every predetermined time interval. The control device includes a memory that stores an expected consumption of the additive during the predetermined period. The control device is configured to determine whether a difference between the actual consumption and the expected consumption is equal to or more than a predetermined value or not.

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