Replying to myself :-)

At 08.07 2011.08.26, you wrote:
>
>PS:
>
>http://www.smtnet.com/Forums/index.cfm?fuseaction=3Dview_thread&CFApp=3D1&
>Thread_ID=3D11689&#Message49245

And Swatch couldn't even have solved it via epoxy resin potting, as whisker=
s
caused failures even in potted boards. See experience #5 for example:
http://www.calce.umd.edu/tin-whiskers/TINWHISKERFAILURES.pdf

Could RoHS be so flawed? :-/


>
>
>
>At 16.37 2011.08.24, you wrote:
>>> The ban is on selling products which contain lead. However, there are
>>> exemptions to this for some specific categories of items which need to
>>> use lead (for example, as Russell pointed out, lead-acid batteries,
>>> but also aerospace and military soldering). If your equipment must
>>> handle special vibration situations, you MAY fall into an exempt
>>> category, but you would need someone more knowledgeable than me to
>>> answer that.
>>
>>I believe that an exemption exists for fine pitch TQFP type components=20
>>(initiated by Swatch after they had major problems with watches). The=20
>>result is that anything below a certain lead pitch falls into the=20
>>exemption AIUI.
>
>Interesting.. I Google'd on it and it seems to mean 0.6mm pitch and below.
>Swatch threatened to stop production if they didn't grant them a exemption=
...
>
>With kind regards,
>Mario
>
>>
>>
>>--=20
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>>
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