Were starting a new product next January, using an FR2 PCB. I would be
grateful for answers to any of the following questions.

(1) What precautions (process procedures) should we use to stop the boards
warping as they     go through the reflow oven? I would be interested to
hear from anyone who send FR2     PCBs through a reflow oven.

(2) What is the ideal temperature for storing FR2 PCBs? 
    We use a selective wave-soldering process for soldering PTH components.
After going     through the reflow oven, how long and at what storage
temperature should we keep the     FR2 PCBs, before we send the boards
across the wave-soldering machine.

(3) What PCB specifications should we give our PCB suppliers, so that the
FR2 boards can      be used effectively as it goes through the process (e.g.
so that the boards don't warp     as they go through the reflow oven)?

Thanks,

Frank Glackin.

***************************************************************************
* TechNet mail list is provided as a service by IPC using SmartList v3.05 *
***************************************************************************
* To unsubscribe from this list at any time, send a message to:           *
* [log in to unmask] with <subject: unsubscribe> and no text.        *
***************************************************************************