1.
    发明专利
    未知

    公开(公告)号:DE2712167A1

    公开(公告)日:1977-10-13

    申请号:DE2712167

    申请日:1977-03-19

    Applicant: IBM

    Abstract: A polysulfone base stop resist material to protect gold thermocompression bonding sites on a circuit module during a solder dipping operation. Along with the thermoplastic, thermostable strippable base of polysulfone, the resist includes a solvent for the polysulfone and a filler which holds the melted polysulfone in place during the solder dipping operation.

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