Electronics Forum | Wed May 15 15:58:11 EDT 2013 | rgduval
Let me see if I understand you correctly. You have a batch washer (looks like a dishwasher). There is a top and bottom spray fixture, which would normally spray water up at the board and down at the board being washed. When you place boards in t
Electronics Forum | Tue Aug 13 06:23:51 EDT 2013 | mccabekev
We are running a Heller 1707 EXL reflow oven, but we have a temperature variation across the board. When the oven first comes up to temperature, the centre of the board is 10degC hotter than the inside rail which is a further 10degC hotter than the
Electronics Forum | Mon Nov 11 08:47:00 EST 2013 | mleber
Thanks guys. Here are more details. The cards are essentially the same. They use the same connectors, same footprint, the traces / layers would be comparable etc. The difference between the 2 we see is that one is laminate - Rigid Metal Clad Base, Ty
Electronics Forum | Thu Jan 02 04:56:38 EST 2014 | bobpan
Here is a couple of things to look at: 1. Make sure the boards are plugged into the correct position. Also just leave out the transport card to see if its hanging up the machine. The transport board should be the board all the way to the right. 2. M
Electronics Forum | Mon Mar 24 20:30:01 EDT 2014 | davef
The "correct" answer is: Use the tests and methods that you used to qualify your solder paste in the first place. That sounds good but might not be all that practical for practicing assembly-types. Here's something that's not as good, but will give
Electronics Forum | Tue Dec 30 20:14:30 EST 2014 | jeff701
We've actually bought a second FX-D, which is intended to mainly handle smaller, higher-volume boards. That will still serve to improve throughput. But at the same time, we're also adding another pick'n'place machine which has a rated speed that's 2
Electronics Forum | Fri Feb 27 02:19:26 EST 2015 | sarason
When I and some friends worked on this project we were aiming for an hour turnaround time. But as the years of development went on we upped the board specification considerably. Also the world changed under out feet as we could get commercial protot
Electronics Forum | Tue Mar 03 09:29:48 EST 2015 | rgduval
A couple of things that have helped me with solder ball issues at wave in the past: 1. Flux. Insure good flux coverage on the bottom of the board. 2. Preheat. Insure that the board is sufficiently preheated for the wave operation. Since you're
Electronics Forum | Sat May 09 11:01:59 EDT 2015 | alphatronique
Hi few year back i design a board for a customer then build pre-production run on my in house line ,all was good then the customer for going into production what to save few $ move to my competitor for assembly this was in late fall then in summe
Electronics Forum | Fri May 22 12:42:43 EDT 2015 | deanm
Sr. Tech, you are right in that there is no verification of the profile. We are a Class 3 high mix OEM. We have visual inspection after SMT. We have not seen problems with wetting, grainy solder, cold solder, charred boards, etc. that would indicate
