Electronics Forum | Tue May 25 09:19:00 EDT 1999 | Ricardo Lopes
| | Has anyone had any experience or data using vibration during the reflow process. | | We introduced a vibration device attached to the fixed rail on a Vitronics reflow oven. The reason was to prevent skewing on large PLCC devices. The process work
Electronics Forum | Fri Apr 18 09:45:42 EDT 2003 | k_h
Transistors? Are you referring to SOT-23 packages? Are the solder paste and part properly registered before reflow?
Electronics Forum | Sun Apr 20 07:20:09 EDT 2003 | tsongshe,Bryan
Thanks. *We use TO252 package,but sometimes the skewed components also happen on TO263 package. *we use TO252 package parts from different suppliers,and when we change the parts from one supplier to the others,few skewed transistors happen again. *
Electronics Forum | Thu Jul 22 17:57:27 EDT 2004 | russ
how fast are your cooling fans and/or convection fans running?
Electronics Forum | Fri Jul 23 07:58:37 EDT 2004 | mmjm_1099
100% Power on cooling fans. Cooling fan speed can be adjusted, but convection fans can�t.
Electronics Forum | Thu Nov 11 09:52:39 EST 2004 | cyber_wolf
By the way.... The placing error is in either the X or the Y. There is no theta skew.
Electronics Forum | Thu Sep 22 15:15:15 EDT 2005 | stepheniii
How are the cameras calibrated on those machines?
Electronics Forum | Fri Oct 20 14:06:49 EDT 2006 | russ
Gotcha Steve, so then in essence if you teach the skew, then the Machine "straightens" it out then right? Russ
Electronics Forum | Tue Mar 06 18:34:59 EST 2007 | GS
It may be to much solder paste under components. Try different paste doposit schape or thikness Regards....GS
