LEADFREE Archives

May 2001

Leadfree@IPC.ORG

Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
"LW Foo (A_Engineering)" <[log in to unmask]>
Reply To:
Leadfree Electronics Assembly E-Mail Forum.
Date:
Thu, 31 May 2001 10:16:19 +0800
Content-Type:
text/plain
Parts/Attachments:
text/plain (60 lines)
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.
>
> --------------------------------------------------------------------------
> -------
> 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
> --------------------------------------------------------------------------
> -------
>

---------------------------------------------------------------------------------
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
---------------------------------------------------------------------------------

ATOM RSS1 RSS2