Electronics Forum | Fri Sep 24 10:57:18 EDT 1999 | Earl Moon
| Hi Folks: | | We've been having bridging problems on our fine-pitch QFP's, despite thorough inspection of paste height, volume, and placement accuracies....profiles look good also. | | The bridging is happening after coming out of reflow...one la
Electronics Forum | Thu Feb 15 23:52:31 EST 2001 | Dreamsniper
Hey guys, I ran a couple of profile in our wave solder machine using wave optimizer and this is what i got: Parallelism = 0.0 Immersion Depth = 2.1mm to 2.4mm with varying immersion time from 1.1 sec to 3.1 secs. Contact Length = between 5.0 to 6.0
Electronics Forum | Wed Feb 15 19:20:46 EST 2006 | Mr. Samir
Russ, On both instruments, I ran them through the wave 20 times each using identical profiles and wave parameters, and then used statistical formulas to measure the variation and repeatability of each. I had these all in Excel, but that was around 1
