Ruben Irizarry wrote: > This is due to thermal stresses in the PCB sometimes when they pass the > oven they become more "soft" and they warp. Why don't you try some > stiffeners to make the PCB strong enough to withstand the higher > temperatures? > Regards, > Rub?n E. Irizarry-Guzm?n > Operations Engineer > > [log in to unmask] on 02/16/98 04:52:39 PM > > Please respond to [log in to unmask]; Please respond to [log in to unmask] > > To: [log in to unmask] > cc: (bcc: Ruben Irizarry) > Subject: [TN] PCB warpage > > What causes PCBs to warp? How can we prevent this from happening? > (Thanks to all responses in advance!) > > ################################################################ > TechNet E-Mail Forum 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://jefry.ipc.org/forum.htm) for additional > information. For the technical support contact Dmitriy Sklyar at > [log in to unmask] or 847-509-9700 ext.311 > ################################################################ > > ################################################################ > TechNet E-Mail Forum 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://jefry.ipc.org/forum.htm) for additional information. > For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 > ################################################################ ################################################################ TechNet E-Mail Forum 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://jefry.ipc.org/forum.htm) for additional information. For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 ################################################################