Electronics Forum | Tue Nov 16 11:02:46 EST 1999 | Dave F
Wolfgang: A snipet of information that maybe more on track that the previous babbling: The temperature limit for FR4 is 130�C according to UL746(?) Good luck Dave F
Electronics Forum | Tue Aug 28 06:17:11 EDT 2007 | jgrootkoerkamp
I have problems with blowholes during the wave soldering process. I already find out that the stock time between reflow and wave is the most important. The longer the boards are in stock the more blowholes we have. We don't have a climat controlled
Electronics Forum | Wed Jan 07 17:39:26 EST 2015 | duchoang
Additional info: I use SAC305 solder paste on Enig PCB.
Electronics Forum | Thu Jan 08 15:49:10 EST 2015 | emeto
I bet you that the problem comes from the ENIG brittle solder joints. About low temperatures I think you can go to the absolute 0 and the device should still work.
Electronics Forum | Tue Dec 16 09:01:52 EST 2003 | tds
What model is your Hollis? Does it have the coil heater?
Electronics Forum | Tue Dec 16 21:17:48 EST 2003 | Peter
Maybe you fixture is too large for your product. If so, please redesign your fixture
Electronics Forum | Wed Dec 17 06:50:51 EST 2003 | ex maintain leader
140..155 degrees celsus the limit is your inserted component temp schock tolerance
Electronics Forum | Tue May 12 22:57:30 EDT 2009 | davef
Polyimide bare board with tin over nickel solderability protection.
Electronics Forum | Wed Jan 07 17:34:52 EST 2015 | duchoang
Customer puts our board to thermal test. Test cycle is -55c to 85c, repeat cycle in 15-20min. After 600 cycles, lot of TSOP joints are cracked, leads lifted. There are reasons such as thin PCB, mechanical impacts, warped PCB... My question is, how lo
