Phil,
To quote Sir Doug," For Class 3 or 3/A of IPC-6012, it depends ". Good
Fabricators, who actively use tool data sets to control and monitor
their processes and are aware of the end use environment, can reliably
make RoHs compliant product from the working ranks of the traditional
FR4s of IPC-4101/21 and /24.
If you want a robust material, which will give other Fabricators a wider
window of opportunity and a product for use on high layer count, high
aspect ratio, small hole, 20 year plus life expectancy; a higher Tg FR4
with a non-dicy( phenolic ) curing agent should be used.
To date only Polyclad 370HR and MEM 1755 have met that target while
still being cost-effective.
Dewey

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Phil Nutting
Sent: Tuesday, October 11, 2005 8:28 AM
To: [log in to unmask]
Subject: [TN] RoHS Process Compliant boards

Good morning all,
 
As we transition to RoHS compliant designs we are trying to cut in RoHS
Process Compliant bare boards, but we are finding that cost and delivery
are a limiting factor.  We had settled on Isola 410.
 
Is anyone else having this problem?
 
What other materials have you been successful using in both wave and
reflow applications?
 
Thanks in advance,
 
Phil Nutting
Design for Manufacturing Engineer
Kaiser Systems, Inc.
126 Sohier Road
Beverly, MA 01915
voice: 978-922-9300 x1310
fax: 978-922-8374
e-mail: [log in to unmask] <mailto:[log in to unmask]>
www.kaisersystems.com
 

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