Electronics Forum | Thu Jan 11 08:12:19 EST 2001 | Steve
We are trying to change to spray fluxing and it not going as good as I hoped, we are having more brigding then what we did with foam fluxing. We are using Qualatex 326
Electronics Forum | Tue Mar 09 16:31:47 EST 1999 | SMTASSY
Yes Nancy when it comes to PLCC or anything bigger then Som, so16 we too use vacumm pens. The initial comment was regarding passive compoents. As for the fristch semi : the vision system is the only thing that is still being used for: 20 mil QFPs
Electronics Forum | Fri Apr 17 21:46:18 EDT 1998 | Matthias Mansfeld
I plan to design a multichip module which contains 1 chip with about 200 pads and 2 chips with about 50 pads, no other components.The whole module shall replace as intermediate solution a single chip CPU in QFP208. Thus, the MCM itself must have t
Electronics Forum | Thu Apr 16 13:12:06 EDT 1998 | Eric Jenkins
Yes we can help. Our company has a division that recycles reels and trays. 1-208-552-1978 or 1 800 881-0780 ask for Eric Jenkins or Chantal Dunkley
Electronics Forum | Wed Dec 17 12:51:56 EST 1997 | Mike Cox
Anybody have one of these machines feel free to call or email me Mike Cox 1-208-887-1000 MCCOX94@AOL.COM Thanks for your help
Electronics Forum | Wed Apr 13 14:54:21 EDT 2005 | vikkaraja
It is QFP 208 legs. I have sat by the machine for hours and did not see a problem before the oven. I walk away from it and get a call again.
Electronics Forum | Mon Oct 31 09:18:43 EST 2005 | jdengler
If the board is HASL you may always have trouble. Try to reduce the amount of paste by either reducing aperture size of stencil thickness. Jerry
Electronics Forum | Tue Nov 01 09:00:07 EST 2005 | russ
Is an RQFP a Qfp with the center pad for heat dissipation? If so, you may be shifting when this center pad reflows and lifts the part.
Electronics Forum | Tue Nov 01 12:36:19 EST 2005 | moonshine
What's your pad geometry/sizes relative to lead width/length? Revisit this and my free website: http://www.moonmanondarkside.com and see some examples and download some free documents. MoonMan
Electronics Forum | Mon Jan 30 11:57:06 EST 2006 | james
We are running under 5% RH. The parts we are having problems with are QFP 208. We have a clean process and right now I am baking 3 boards before they remove the parts and then sending them back to test.
