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June 2003

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Subject:
Re: article and research request
From:
Werner Engelmaier <[log in to unmask]>
Reply To:
(Leadfree Electronics Assembly Forum)
Date:
Wed, 11 Jun 2003 00:12:12 EDT
Content-Type:
text/plain
Parts/Attachments:
text/plain (19 lines) 
Hi Doug,
While a 260C rating will be adequate for some components, e.g. leaded
components, it is not adequate for larger BGAs with some of the more popular
LF-solders. Ratings of 275C may be required for those--of course, it depends whether a
short-time (<10 sec) exposure to 275C violates a 260C rating or not. How are
these ratings determined?

Regards,
Werner Engelmaier

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