The development of a laser welder to produce multiple welds/laser pulse for use in a flip-chip process is described. Using a glass laser with a blocking mask to split the laser beam into a multiplicity of spots, the simultaneous welding of all 14 interconnect points between an aluminum interconnect pattern on a glass substrate and an unplated Kovar lead frame is possible, weld shear strength of from 800 – 1200 grams in eight-spot samples was achieved in an experimental system.


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    Titel :

    Laser Welding of Microcircuit Interconnections - Simultaneous Multiple Bonds of Aluminum to Kovar


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Battista, A. D. (Autor:in) / Ponti, M. A. (Autor:in)

    Kongress:

    Micro Electronic Packaging Conference ; 1968



    Erscheinungsdatum :

    1968-02-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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