Most of the resin systems are proprietary so that won't get you far --
best bet is to pick a /sheet and list any specific requirements over and
above 4101  -- or list approved laminate systems on the print...


-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Honsowetz, Eric
Sent: Thursday, November 08, 2007 2:40 PM
To: [log in to unmask]
Subject: Re: [TN] Specifications for the Epoxy in Glass/Epoxy Boards

I need to be able to specify the laminate materials well enough to allow
the boards to be fabricated by multiple suppliers and achieve the same
performance from each PCB suppler without specifying to the supplier the
vendor of the laminate system.  Looking at 4101 I am uncertain that the
Specification Sheets provide the detail to facilitate this, though they
may be a good start.  

So my question in one sense is regarding the mixture of the epoxy.  Is
it all the same epoxy (as a EE I'm not sure if epoxy is a particular
organic component or a general class of organic compounds) and if
laminate systems that meet the specification sheet come from different
vendors will they have the same electrical and mechanical performance.
(We manufacture RF circuits so this is an issue)

eric

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Werner Engelmaier /*
Sent: Thursday, November 08, 2007 2:20 PM
To: [log in to unmask]
Subject: Re: [TN] Specifications for the Epoxy in Glass/Epoxy Boards

Hi Eric,
All specifications are specific-some are just more so than others, some
are 
more adequate than others.
What exactly do you REALLY want to know?



Werner



**************************************
 See what's new at http://www.aol.com

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
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
-----------------------------------------------------

**********************
** LEGAL DISCLAIMER **
**********************

This E-mail message and any attachments may contain 
legally privileged, confidential or proprietary 
information. If you are not the intended recipient(s),
or the employee or agent responsible for delivery of 
this message to the intended recipient(s), you are 
hereby notified that any dissemination, distribution 
or copying of this E-mail message is strictly 
prohibited. If you have received this message in 
error, please immediately notify the sender and 
delete this E-mail message from your computer.

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
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 15.0
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
-----------------------------------------------------