Safety-related and special-use electronics such as those used in automotive electronics have been exceptions to the complete European lead ban ROHS (Reduction of Hazardous Substrates). The European End of Life Vehicle (ELV) regulation, however, only permits lead in connecting elements (in particular soldering techniques), batteries and in bound form with glass and ceramics. Lead in other components of vehicle electrics and electronics such as connectors, cable insulation and protective coatings has to already have been eliminated. Hella experiences in leadfree production and product applications over more than 10 years show that the leadfree soldering technology is not an easy drop in solution for the existing leaded soldering standards. The new solder process shows lower ability and higher thermal risk to the components. Solder joint reliability values are higher toleranced caused by complex metallization effects and worster wetting. The field of automotive electronics would be well advised to wait for the experiences and optimizations made in nonautomotive areas this time and in the next years (regarding ROHS) to approach the new technology with optimized leadfree designs and a mature supplier market. The environmental benefits of leadfree soldering technology are disputed, particularly in view of increasing recycling and dismantling efforts made by vehicle manufacturers. On the other hand, there is a quality and reliability risk which will only be quantifiable in a few years. This paper illustrates concrete knowledge from previous leadfree series soldering work and derives some recommendations from this.


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    Titel :

    Leadfree automotive electronics: status quo & first experiences in production and field


    Beteiligte:
    Davis, Dan (Autor:in) / Lange, Petrik (Autor:in) / Davidson, Troy (Autor:in)


    Erscheinungsdatum :

    2006


    Format / Umfang :

    7 Seiten, 8 Bilder, 3 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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