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April 2007

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Subject:
From:
"Tempea, Ioan" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Tempea, Ioan
Date:
Mon, 30 Apr 2007 14:42:27 -0400
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Dear Technos,

I need to know how is this combat evolving. This topic has been brought up several times, but things change fast right now and there must be more empirical data on the matter.

What I know regarding the 2 materials can be summarized:

*	Pro SN100C: cheaper, better looking, eats less copper in the TH
*	One major unknown - the Reliability: SN100C is not available in solder paste format, therefore the boards would have SAC SMT joints and SN100C TH joints. This means 2 different materials and since we don't know how reliable a board with only one material is, should we risk introducing an extra variable?

I would like to know what your take is. Does anybody mixes the 2 materials? Any reliability testing done? How long have you been doing it and do you see RMAs?

Thanks,

Ioan


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