5.
    发明专利
    未知

    公开(公告)号:DE68905001T2

    公开(公告)日:1993-09-16

    申请号:DE68905001

    申请日:1989-06-10

    Applicant: IBM

    Abstract: Method and apparatus for fluxlessly solder bonding a solder mound (2) to a solder wettable surface (8,10). A heated gas (12), preferably a reducing or non-reactive gas, is directed at a solid solder mound (2). Gas is heated to a temperature sufficient to melt solder mound. The heated gas is directed at the molten solder mound (2) at a momentum sufficient to disperse an oxide layer at the surface of the molten solder mound (2). Dispersing the oxide layer permits the molten solder to wet the solder wettable surface. The molten solder is cooled to form a solder bond.

    6.
    发明专利
    未知

    公开(公告)号:DE68905001D1

    公开(公告)日:1993-04-01

    申请号:DE68905001

    申请日:1989-06-10

    Applicant: IBM

    Abstract: Method and apparatus for fluxlessly solder bonding a solder mound (2) to a solder wettable surface (8,10). A heated gas (12), preferably a reducing or non-reactive gas, is directed at a solid solder mound (2). Gas is heated to a temperature sufficient to melt solder mound. The heated gas is directed at the molten solder mound (2) at a momentum sufficient to disperse an oxide layer at the surface of the molten solder mound (2). Dispersing the oxide layer permits the molten solder to wet the solder wettable surface. The molten solder is cooled to form a solder bond.

Patent Agency Ranking