A very practical suggestion which every design engineer should be doing for new product design. The IPC and the IEC have published
specifications for the component compatibility and this is what should be used for reference when running trials or examining new
designs.

Unfortunately the peak temperatures for the test may allow direct assessment for components for current lead free alloys but it does
not leave the same margin for error that it currently does.

Bob Willis

Tel: (44) 01245 351502
Fax: (44) 01245 496123
Email: [log in to unmask]
Web Page: www.bobwillis.co.uk
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----- Original Message -----
From: Brooks, Peter <[log in to unmask]>
To: <[log in to unmask]>
Sent: 28 July 1999 17:25
Subject: Re: [LF] New Topic?


> Well I for one expect big time problems going up in temperature to 260 C.
>
> One of the suggestion I made to the NEMI lead free component subgroup is to
> actually go out and test current packages to see what happens.
>
> Pete Brooks
> Harris Semiconductor
>
>         -----Original Message-----
>         From:   David Suraski - AIM [SMTP:[log in to unmask]]
>         Sent:   Wednesday, July 28, 1999 11:24 AM
>         To:     [log in to unmask]
>         Subject:        [LF] New Topic?
>
>         Where is everyone? Don't tell me that all lead-free questions have been
> resolved!
>
>         Are there any component folks on the group now? If so, do any of you
> have any comments as to the ramifications of increasing reflow peak temps to
> 240C, 250C, 260C, etc.? We were discussing reliability issues a couple of weeks
> ago, but I'm not sure how many questions actually were resolved.
>
>         Thank you and best regards,
>
>         David Suraski < [log in to unmask] <mailto:[log in to unmask]>>
>         Technical Marketing Specialist
>         AIM < www.aimsolder.com <http://www.aimsolder.com>>
>         25 Kenney Drive/Cranston, RI 02920
>         Tel: 401-463-5605/1-800-CALL-AIM/Fax: 401-463-0203
>
>
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################################################################
IPCWorks -October 25-28 featuring an International Summit on Lead-Free Electronic
Assemblies.
Please visit IPC's Center for Lead-Free Electronics Assembly
(http://www.ipc.org/html/leadfree.htm ) for additional information.
For technical support contact Gayatri Sardeshpande [log in to unmask] or 847-790-5365.
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