Subject: | |
From: | |
Reply To: | Leadfree Electronics Assembly E-Mail Forum. |
Date: | Thu, 31 May 2001 10:16:19 +0800 |
Content-Type: | text/plain |
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Hi Lynn,
What is the % means for? is this solder spheres or solder paste?
Currently I work in solder spheres , is it consists of this % tolerance?
Your advise is highly appreciated..
Thanks & Regards
L.W.Foo
Engineer - Advanced Technology
Foo Loke Whong
Carsem Semiconductor Sdn Bhd
Email id : [log in to unmask]
Phone : +(6 05) 5262333 Ext : 530
Fax : +(6 05) 5265333
> ----------
> From: Lynn Norman[SMTP:[log in to unmask]]
> Reply To: Leadfree Electronics Assembly E-Mail Forum.;Lynn Norman
> Sent: Wednesday, May 30, 2001 12:02 AM
> To: [log in to unmask]
> Subject: [LF] Lead-free tolerances
>
> We're starting our in-house evaluation of lead-free solder. The
> composition
> we are initially looking at is 95.5Sn-3.8Ag-0.7Cu. Our current spec for
> SnPb has a +/- tolerance of 0.5% on the composition. What kind of
> tolerance
> will the lead-frees have? How much of an effect will the variability have
> on solidus/liquidus temperatures? Just curious as to what others are
> doing.
>
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Leadfee Mail List provided as a free service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Leadfree
To temporarily stop delivery of Leadree for vacation breaks send: SET Leadfree NOMAIL
Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
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