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    Updating prediction model
    53.
    发明授权
    Updating prediction model 有权

    公开(公告)号：US10565516B2

    公开(公告)日：2020-02-18

    申请号：US14657633

    申请日：2015-03-13

    Applicant: International Business Machines Corporation

    Inventor： Dong Chen ,  Sier Han ,  Long Jiao ,  Jing Zhang ,  Weicai Zhong

    IPC: G06N20/00 ,  G06F17/18

    Abstract: Updating a prediction model, where the prediction model is used for time series data, a computer selects a first prediction time window in an order from a plurality of prediction time windows associated with the prediction model, and predicts predicted values of the time series data at time points within the first prediction time window. The computer calculates a prediction error associated with the first prediction time window based on the one or more predicted values and one or more actual measured values of the time series data at the plurality of time points. The computer determines whether the prediction error is larger than a predefined error threshold associated with the first prediction time window, and in response to determining the prediction error is larger than the predefined error threshold, provides a notification of updating the prediction model.

    COATING METAL FOIL WITH N-HETEROCYCLIC CARBENE COMPOUNDS CONTAINING ORGANIC FUNCTIONALITIES FOR IMPROVING METAL-TO-RESIN ADHESION
    54.
    发明申请
    COATING METAL FOIL WITH N-HETEROCYCLIC CARBENE COMPOUNDS CONTAINING ORGANIC FUNCTIONALITIES FOR IMPROVING METAL-TO-RESIN ADHESION 审中-公开

    公开(公告)号：US20200053886A1

    公开(公告)日：2020-02-13

    申请号：US16656691

    申请日：2019-10-18

    Applicant: International Business Machines Corporation

    Inventor： Dylan J. Boday ,  Joseph Kuczynski ,  Jason T. Wertz ,  Jing Zhang

    IPC: H05K3/46 ,  B01J31/22 ,  H05K3/38

    Abstract: A carbene-coated metal foil is produced by applying an N-heterocyclic carbene (NHC) compound to one or more surfaces of a metal foil (e.g., an electrodeposited copper foil having a surface that is smooth and non-oxidized). The NHC compound contains a matrix-reactive pendant group that includes at least one of a vinyl-, allyl-, acrylic-, methacrylic-, styrenic-, amine-, amide- and epoxy-containing moiety capable of reacting with a base polymer (e.g., a vinyl-containing resin such as a polyphenylene oxide/triallyl-isocyanurate (PPO/TAIC) composition). The NHC compound may be synthesized by, for example, reacting a halogenated imidazolium salt (e.g., 1,3-bis(4-bromo-2,6-dimethylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride) and an organostannane having a vinyl-containing moiety (e.g., tributyl(vinyl)stannane) in the presence of a palladium catalyst. In some embodiments, an enhanced substrate for a printed circuit board (PCB) is produced by laminating the carbene-coated metal foil to a substrate that includes glass fiber impregnated with the base polymer.

    Shape actuation encapsulant of a cryptographic module
    56.
    发明授权
    Shape actuation encapsulant of a cryptographic module 有权

    公开(公告)号：US10325121B2

    公开(公告)日：2019-06-18

    申请号：US15810884

    申请日：2017-11-13

    Applicant: International Business Machines Corporation

    Inventor： Sarah K. Czaplewski ,  Joseph Kuczynski ,  Jason T. Wertz ,  Jing Zhang

    IPC: H04L9/00 ,  G06F21/87 ,  H04L9/10 ,  G09C1/00 ,  H01L23/00

    Abstract: To provide for a physical security mechanism that forms a complete envelope of protection around the cryptographic module to detect and respond to an unauthorized attempt at physical access, a tamper sensing encapsulant generally encapsulates the cryptographic module. The tamper sensing encapsulant includes a first shape actuation layer associated with an electrically conductive first trace element and a second shape actuation layer associated with an electrically conductive second trace element. The first shape actuation layer is positioned against the second shape actuation layer such that the first trace element and the second trace element do not physically touch at an operating temperature of the cryptographic module and do physically touch when the first shape actuation layer and the second shape actuation layer are thermally loaded. Upon first trace element and the second trace element touching, a circuit is formed that disables the cryptographic module.

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