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Residue News A monthly newsletter by Foresite Inc.
December 2005

Greetings!

Welcome to the December issue of Residue News! Foresite wants to wish all of its loyal readers and customers a happy holiday season. In the new year, we all must prepare to face the RoHS deadline, and Foresite is busy now qualifying new lead free processes and remaining up to date with all the latest developments. In this issue, find some helpful advice on surface finish choices, as well as a warning tale about reflow profiles.

In this issue
  • Ask an Expert
  • Let it Flow
  • C3 Correlation Study with SIR Wrapping Soon
  • Foresite to Present at SMTA Pan Pacific Conference
  • Do You Need to Qualify a New Lead Free Process?

  • Let it Flow
    Let it Flow Picture

    The importance of fully activating fluxes is integral in acheiving clean, reliable product. In this case study, we look at a customer who just needed to make some modifications to a double sided reflow profile in order to allow proper solder flow and flux complexing.


    C3 Correlation Study with SIR Wrapping Soon
     

    Foresite is wrapping up an extensive study comparing C3 test results to SIR performance data. The full report will appear on our website soon. Developers are also working to make improvements to the C3 operating software, and will begin making updates to C3 systems already in the field starting in 2006. Stay tuned for more updates.


    Foresite to Present at SMTA Pan Pacific Conference
    Pan Pacific Logo

    Foresite's president, Terry Munson will be presenting a technical paper at the SMTA's Pan Pacific Microelectronics Symposium on the Big Island of Hawaii. The presentation, entitled Controlling Localized Contamination on Microelectronic Assemblies with the Change to Lead Free Manufacturing, will be the opening presentation to the conference on Tuesday January 17th at 9:00am. Foresite will also have the C3 system on site at the Pan Pacific conference, so stop by and see how it works.


    Do You Need to Qualify a New Lead Free Process?
    lead free qualification

    The lead free deadline is quickly approaching. It is important to know the long term reliability effects of lead free processing conditions. Foresite offers a comprehensive lead free qualification package including ion chromatography, SIR testing with both the standard and European testing conditions, cross sectioning, pull testing, shear testing and ROSE testing.


    Ask an Expert
    Photo of Terry Munson

    In this month's Ask an Expert segment, Foresite president Terry Munson compares and contrasts ENIG and Immersion Silver surface finishes. He also touches upon the steps involved in a proper process qualification with regards to primary and secondary soldering processes.

    Read what the expert has to say....
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