Electronics Forum | Mon Nov 20 06:51:00 EST 2000 | Daniel Carlsson
Does anyone have information regarding: -Moisture level (wt%) that may cause delamination in PCB�s. -Baking time and temperature if using a Vacuum Drying Cabinett and if using an air oven. (What I�m most interested of is Poly-Imid-Aramid.) -Are ther
Electronics Forum | Sun Aug 27 20:30:53 EDT 2006 | darby
AJ, We use all ENIG boards. After opening, any remaining boards are kept in low humidity keeping cabinet. I have never experienced a problem using this method I think the longest I have kept them this way is eighteen months. We also store any open tr
Electronics Forum | Wed Apr 21 23:05:37 EDT 2021 | duchoang
We have an YXLON Cougar X-Ray machine. Run good in 10 years. Now, when we started the machine as usual, the machine run START-UP process, Manipulator Reference OK, Vacuum OK, but not "Warm Up", the X-Ray keep turning off and on showing Voltage ~50KV
Electronics Forum | Wed Jun 11 16:30:33 EDT 2003 | T.Vick
You have received some great feedback so far. I would like to summarize and add a few points regarding maintenance. You should start (as recommended already) by verifying your component library data. Using the default values from the master library i
Electronics Forum | Mon Oct 28 09:48:10 EST 2002 | gregp
If I understand correctly you want to pick BGAs from the ball side using some type of vacuum arrangement. You will find that the reliability of this is dependant on the size of the balls and the pitch. The larger the balls and tighter the pitch, th
Electronics Forum | Thu Feb 07 12:18:41 EST 2008 | tonyamenson
Does anyone use or have any simple wave/reflow oven exhaust monitors with a visual check (LED). I was going to design something crude resembling a fan with an electric winding (electric motor of sorts)and a load (resistor maybe with a transistor if
Electronics Forum | Sun Apr 18 03:58:26 EDT 1999 | P.L. Sorenson - Technical Consultant
| While trying to sell me a low temperature baking system for SMDs the salesman mentioned that the 125C for 24hr bake had been known to cause co-planarity defects. | I thought I'd ask some experts. Any help guys? | To remove moisture from low quanti
Electronics Forum | Sun Jul 18 21:11:03 EDT 2004 | Thomas
Hi all, Need some advice on wavesolder pinholes issues. The PCBs are stored in a warehouse for 6 months and not vacuum packed. Before wavesodlering, boards are baked 2 hrs at 110 deg. But every piece of it has pinholes at random locations. PCB i
Electronics Forum | Sun Jul 18 21:15:05 EDT 2004 | Thomas
Hi all, Need some advice on wavesolder pinholes issues. The PCBs are stored in a warehouse for 6 months and not vacuum packed. Before wavesodlering, boards are baked 2 hrs at 110 deg. But every piece of it has pinholes at random locations. PCB i
Electronics Forum | Wed Jan 24 10:20:39 EST 2007 | electronhose
Seriously, OSP?, change the board finish, you are the OEM, correct? You have the power! Also, as another poster mentioned, high force applied at ICT ( possibily to cut through the OSP goop ?!? ) could be warping the board enough to crack the joints.
