Electronics Forum | Thu Dec 17 03:25:00 EST 2009 | tod1967
Not sure if Multicore/Henkel still offers it, Prozone is an outstanding chemistry for RMA removal. Heated to a relatively low temp. No Ultrasonics necessary. Could use a Pyrex Beaker Hot and Hot Plate to test.
Electronics Forum | Mon Dec 14 13:20:56 EST 2009 | stepheniii
Xrays go through aluminum quite well. I've xrayed BGAs with heat sinks that were well over an inch tall and they only made faint shadows. What material is the bottom of the PCB? And how are you going to bond to it?
Electronics Forum | Thu Dec 17 03:20:32 EST 2009 | tod1967
Sounds like a good challenge. What is your interconnect bond method? Solder Paste, Pre-Form/Liquid Flux or Paste, Assuming your using solder. Reflow method?
Electronics Forum | Thu Dec 17 03:10:34 EST 2009 | tod1967
Chemistries are limited for WS Mask. Try looking/changing other components, trying different flux types is easy, identify water cleanliness, is it ionic/no-ionic...probably is benign. Could be a plating reaction which is tough to investigate. Call
Electronics Forum | Wed Mar 24 07:10:32 EDT 2010 | aj
Hi all, I would like some recommendations on what machines are best suited to Automated Insertion of plated through hole LEDs. I am sure there are plenty of pitfalls associated with this type of process aswell, so if you could share these aswell.
Electronics Forum | Mon Mar 29 14:32:01 EDT 2010 | isd_jwendell
The board in the test "used an electroless nickel/immersion gold (ENIG) finish." If you are not using ENIG plating on your PCBs then you may not suffer from the same issue.
Electronics Forum | Fri Oct 29 11:42:04 EDT 2010 | pfloh
For my opinion, this will not the end for you yet if supplier unable to provide you the rootcauses and corrections. I faced this more than 3 times within 2 years. All type of lab tests (SEM, FTIR,cross-sectioning,solderability tests, and etc.) They
Electronics Forum | Mon Apr 19 03:19:43 EDT 2010 | cunningham
What do other people use to ensure that the BGA machine is within spec ie beform a weekly check and record on SPC charts? We want to start recording this can a plate or some kind of surveyor be used on the machine ?
Electronics Forum | Thu Apr 29 15:34:40 EDT 2010 | bradlanger
Does anybody know where you can get Canada Bolson Oil or Suitable alternative that is optically clear to test the plating in a PTH for outgassing?
Electronics Forum | Fri May 07 14:26:24 EDT 2010 | cyber_wolf
The spring tension will definitely cause what you were describing. Take a look at the friction plates between the sprockets. If they get real shiny from wear it can cause them to overshoot when the sprocket advances.
