CAF-Conductive Anodic Filamentation (or Conductive Anodic Filament
growth) - An electrical short which occurs in PCBs when a conductive
filament forms in the laminate dielectric material between two adjacent
conductors under an electrical bias. CAF is a potentially dangerous
source of electrical failure in the PCB. As PCB designs have increased
in density, with hole-to-hole spacings reduced to 25 mils or less, CAF
has become an everyday concern. [adapted from Erik J. Bergum, "CAF
Resistance of NON- DICY FR-4," PC FAB, 9/2002]
Ramon
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Whittaker, Dewey
(EHCOE)
Sent: Wednesday, June 21, 2006 4:05 PM
To: [log in to unmask]
Subject: Re: [TN] Board material
Conductive Anodic Filament(CAF)growth can result in a CAF failure.
Contrary to popular opinion it is not the result of Mad Cow Disease.
Dewey
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of George Carroll
Sent: Wednesday, June 21, 2006 12:45 PM
To: [log in to unmask]
Subject: [TN] Board material
I'm unfamiliar with an acronym. What is CAF material and what, if
anything, is special about it?
George Carroll
Process Engineer, EPIC Technologies, LLC 3000 Bill Garland Road Johnson
City, Tennessee 37604
(423) 461-2948
[log in to unmask]
---------------------------------------------------
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
-----------------------------------------------------
---------------------------------------------------
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
-----------------------------------------------------
|
