In a typical flowline assembly of circuit boards, what are the different
methods used for tracking WIP ?

I can think of :

1. travel cards - not suitable for panelised boards
2. Marking ID# on board at various operations while board is being built.
that communicates next operation - completion of previous screening
operation and who did it
3. Apply labels - cost could be issue as more you add info, higher the cose
will be

Though method at sr no 2 is flexible and cost effective but has limitation
that the marking may inadvertently removed due to handling or spot cleaning
during processing or rework / repair.

I am looking for a Marker Pen which has ink suitable for PCB marking and it
does not dissolve into alcohol readily. Any suggestion on Marker or
alternate method will be highly appreciated.

The soldering process is NC. Spot cleaning is unavoidable. smearing of ink "
sharpie pen" inadvertently is again unavoidable. We are looking for Marker
Ink which can bear the handling / such situation.

For Canadians, belated Canada Day and for American, wish you America Day .


Ashok Dhawan


________________________________________________________________________
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com

##############################################################
TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c
##############################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in
the body:
To subscribe:   SUBSCRIBE TECHNET <your full name>
To unsubscribe:   SIGNOFF TECHNET
##############################################################
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information.
If you need assistance - contact Keach Sasamori at [log in to unmask] or
847-509-9700 ext.5315
##############################################################