Marshall: Not to hedge, but it depends. If you are in Arizona in the summer you could probably leave it out for a week, but in Florida in the summer 1 hour could be to long. It really depends on the ambient conditions. To be on the safe side the rigid-flex should be baked 1 hr @ 250 F prior to solder operation. If you need to leave out for a period of time after bake, leave parts under a heat lamp. Regards, Ron Yanuszewski ______________________________ Reply Separator _________________________________ Subject: Assy: Rigid Flex Author: [log in to unmask] at !INTERNET Date: 1/24/97 2:00 AM What is the maximum period of time that a rigid-flex board consisting of glass reinforced polyimide board and polyimide flex, can be left out of the dry box on the assembly floor before it should be re-baked to insure that it will not blister or de-laminate? Thanks in advance for helping clear up a discussion between a board supplier and an assembler. Marshall Andrews [log in to unmask] *************************************************************************** * 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. * *************************************************************************** * If you are having a problem with the IPC TechNet forum please contact * * Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask] * *************************************************************************** *************************************************************************** * 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. * *************************************************************************** * If you are having a problem with the IPC TechNet forum please contact * * Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask] * ***************************************************************************