Susan,

I would hope the customer would spec out the laminate as RoHS compliant,
high Tg and from this the Fabrication house should infer the board will
be used in a lead-free process. 

Sadly, some fab houses/end users think that the old standard FR4, if
plated with ENIG or IAg is RoHS compliant and therefore can be used in a
lead-free process.  Too bad our esteemed membership does not make up all
the specifiers of materials.  If that were the case this would all be a
moot point.

My 0.5 rubles.

Phil

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Susan Mansilla
Sent: Tuesday, December 13, 2005 10:13 AM
To: [log in to unmask]
Subject: Re: [TN] Qualification of the Pb-free capable manufacturers

Greetings to All
One aspect of this is when to test.  I do understand Werner's desire to
have
the raw material tested in some way to determine if it has the needed
ppm/C -
but I am still concerned about a multilayer board and the need to test
it in
some way to see if it has been cured sufficiently/has appropriate
adhesion
enhancement between layers etc to meet the needed ppm/C.

The same questions then become what to test and how to test?

The 6012 group is meeting in Mesa in January and some of the topics are
how
and what need adjustments when LF applies.

The other puzzle is when will a fabricator know that the board they make
is
to be assembled in a LF process.

Any suggestions or recommendations are welcome

Susan Mansilla
Robisan Lab

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 1.8e
To unsubscribe, send a message to [log in to unmask] with following text
in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to
[log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to
[log in to unmask]: SET Technet Digest
Search the archives of previous posts at:
http://listserv.ipc.org/archives
Please visit IPC web site
http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100
ext.2815
-----------------------------------------------------

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 1.8e
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------