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Indium Corporation conducts extensive research on the soldering fundamentals for Surface Mount Technology and other electronics applications.

Browse our library for abstracts of some of the most popular published articles that you may find useful in your efforts to improve your process results. All papers in our library are available for download.

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    Papers by Brian Toleno

  • A Review of Test Methods and Classifications for Halogen-Free Soldering Materials

    by Gordon Clark, Renee Michalkiewicz, Timothy Jensen, Brian Toleno, Jasbir Bath

    Over the last few years, there has been an increase in the evaluation and use of halogen-free soldering materials. In addition, there has been increased scrutiny into the level of halogens and refinement of the definition and testing of halogen-free soldering materials. The challenge has been that there has been no common standard across the industry in terms of halogen-free definitions and the corresponding test methods to determine these. This has created confusion in the industry as to what end users want and what soldering materials suppliers can actually provide. This paper will review the status of both halogen-free and halide-free in terms of definitions, test methods and the limitations and accuracy of test methods used to determine if a soldering material is halogen/halide-free or not. For halogen-free and halide-free definitions, the paper will review the different industry standards which are currently available and those being drafted, and it will discuss any similarities and differences. It will also cover the origins of some of the definitions mentioned in the standards. The paper will include a review of the accuracy and limitations of several test methods and preparation techniques for halogen and halide determination.

    Apex 2011, soldering materials, halides, halogen-free

    Posted on 11 Apr 2011

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