Good morning Mel,
Our facility uses hundreds of flex tapes each week.  Some CCAs employ
several different size flex tapes per unit.
I haven't heard of any concern from our Failure Analysis person regarding
suspect ESD damage.
However, our facility is very ESD conscious with mandatory heel straps, ESD
flooring, equipment grounding, continuous monitoring on all work benches,
fully snapped smocks, etc. so it may be difficult for an ESD charge to build
up and remain on the surface of the flex tape insulation.  I believe there
is a very slim chance of a high potential charge from building up and
rapidly discharging thru our product.
Hope this helps.
Pete

                            Honeywell
Peter A. Phillips, Sustaining Engineer
Manufacturing Engineering
Home and Building Controls
8500 Bluewater Road N.W.
Albuquerque, NM 87121-1958
Pho     505-831-7509
Fax     505-836-4834
[log in to unmask]


-----Original Message-----
From: Mel Parrish [mailto:[log in to unmask]]
Sent: Thursday, August 17, 2000 10:35 PM
To: [log in to unmask]
Subject: [TN] Flex ESD Concern


 How many assemblers treat flex cable (no components) with ESD
considerations to prevent charge generation and therefore reducing potential
for assembly damage to ESDS components? I have run across only one but
wonder if their concerns are truly founded. Could this be common practice?
Mel Parrish

##############################################################
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
##############################################################

##############################################################
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
##############################################################