JOINED BODY PRODUCTION METHOD, JOINED BODY, LAMINATE PRODUCTION METHOD, LAMINATE, DEVICE PRODUCTION METHOD, DEVICE, AND COMPOSITION FOR FORMING POLYIMIDE-CONTAINING PRECURSOR PART

    公开(公告)号:EP4456133A1

    公开(公告)日:2024-10-30

    申请号:EP22910755.2

    申请日:2022-11-25

    摘要: There is provided a manufacturing method for a bonded body, in which a bonded body having a large maximum peeling resistance force between two substrates is obtained in a case where the two substrates are bonded, and a bonded body to be obtained, a manufacturing method for a laminate and a laminate to be obtained, a manufacturing method for a device and a device to be obtained, and a composition for forming a polyimide-containing precursor portion.
    The manufacturing method for a bonded body includes a step of preparing a substrate A; a polyimide-containing precursor portion forming step of forming a polyimide-containing precursor portion on the surface of the substrate A, where the wiring line terminal is provided on the surface of the substrate A; a step of preparing a substrate B; and a bonding step of bonding the surface of the substrate A, where the polyimide-containing precursor portion is provided on the surface of the substrate A, to the surface of the substrate B, where the wiring line terminal is provided on the surface of the substrate B. In the manufacturing method, a difference between a cyclization rate of a polyimide in the polyimide-containing precursor portion before the bonding step and a cyclization rate of a polyimide in a polyimide-containing portion is 5% or more.

    NANOMODIFIED BACKBONES FOR POLYIMIDES WITH DIFUNCTIONAL AND MIXED-FUNCTIONALITY ENDCAPS

    公开(公告)号:EP4332169A3

    公开(公告)日:2024-05-08

    申请号:EP24153225.8

    申请日:2015-08-24

    IPC分类号: C08G73/10 C08L79/08

    摘要: Polyimides containing a backbone with at least one nanoparticle component and made from oligomers having endcaps that are difunctional or a mix of di- and monofunctionality are provided. The endcaps may be nadic or phenylethynyl. The backbone may be wholly inorganic or made from a mixture of inorganic and organic groups. The oligomers may be created in-situ using standard polymerization of monomeric reactants chemistry using a solvent or may be provided as a pre-imidized compound that may be either a solid or liquid. It is believed that the nanoparticle component of the polymer backbone provides superior thermo-oxidative stability verses unmodified organic backbones. It is further believed that providing difunctional or a mixture of di- and monofunctional endcaps allows for increased crosslinking to provide improved strength and stiffness verses wholly monofunctional endcapped oligomers for polyimides. The nanoparticle is part of the backbone of the polymer and not solely a pendant group.