Barry,
        Are you writing a serial number, or just using a mark to
indicate "passed test" etc? If you are looking to serialize a board, you
may want to look at a laser etch system. If your volume is high enough
the cost is less then kapton labels.
        We use turn-key laser etch systems from Control Micro Systems in
FL. We etch a 2D data matrix symbol on the rail of the panel in a
consistent location to enable us to read the data matrix symbol on the
fly as it moves down the conveyor, and a 2D serial number on every board
on the panel. We also etch human readable information when there is
room.
        The serial numbers are linked, so you can do your data analysis
from board to panel and panel to board. When we test a panel, we scan
the panel serial number, once the individual boards are broken off the
panel we use the symbol on each board.

Regards,
Chris

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Barry Darnell
Sent: Thursday, April 14, 2005 4:54 PM
To: [log in to unmask]
Subject: [TN] Methods for marking PCB's


Hello,

 

Can someone recommend methods for marking pcb's.  It needs to be able to
withstand wave soldering temps.  Currently we mark different builds with
a permanent marker.  This is messy looking and time consuming.  Any help
will be appreciated.

 

Thanks,

 

Barry Darnell

 


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