Electronics Forum | Tue Apr 09 00:09:25 EDT 2002 | craigj
Question. When profiling and looking at the profiles cooling rate. Over what temperature range should the slope be monitored and what sort of cooling rates should be looked for. Paste supplier says no more than 6degC per sec, some components maybe lo
Electronics Forum | Tue Apr 09 07:41:08 EDT 2002 | johnw
Craig, it depend's n what you want to look at. In term's of te gran structure of the solder jont that's formed when the joint is cooling so you'd want to monitor the temperature drop from the peak or say 215dg C for ref down to probably about 150 an
Electronics Forum | Mon Feb 10 12:35:11 EST 2020 | emeto
on 10 zone ovens with 3 cooling zones, my negative slope is between 2.5 to 4 deg C/second based on board size and thermal mass.
| 1 |
winsouce.jpg)