We are currently experiencing drilling tears in a 12 layer part. The part
has 12 layers FR4 all layers are 2oz. Pre-Preg style is 1080. Tears are
in both pre-preg and original substrate layers. We have tried reducing hit
counts, some attempts at pecking.
Has anyone experienced this problem or can anyone suggest a fix.
Best Regards
Ian Giddings
##############################################################
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.
For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311
##############################################################