Electronics Forum: causing (Page 1 of 476)

Re: Contamination causing shorts.

Electronics Forum | Sat Sep 25 07:07:02 EDT 1999 | Brian

I need a memory jog. What is the term for the growth of conductive contamination after a board is in storage or field? There are several different mechanisms which can cause this. In reality, ionic contamination is the root cause for many of the

What caused this reflow issue?

Electronics Forum | Wed Apr 16 10:47:18 EDT 2008 | tonyamenson

deleted:

What caused this reflow issue?

Electronics Forum | Mon Apr 14 21:43:04 EDT 2008 | joseph_gonzales16

Your problem is process you need to eliminate and there are so many causes to considered. 1.your solder paste 2.your PCB pads 3.your component 4.your profile 5.your printer 6.your placement. you need to isolate all these one of this is your problem.

PCB troubleshooting cause

Electronics Forum | Thu Aug 21 05:08:09 EDT 2008 | ihamon

Hi, We had a electric failure on a printed wired board after a few hours of functionning. We determined that the failure was caused by a open circuit in the PCB internal layer near to a via. We performed a microsection but unfortunately, it seemes t

Tombstone caused by flux residue

Electronics Forum | Thu Jul 07 18:07:38 EDT 2005 | saragorcos

Ahh. sorry for the foul up - and thanks for stopping the spread of misinformation!! Sarag

What caused this reflow issue?

Electronics Forum | Wed Apr 16 14:50:55 EDT 2008 | realchunks

And your screen print looks good?

PCB troubleshooting cause

Electronics Forum | Thu Aug 21 07:34:36 EDT 2008 | realchunks

You will need to micro section a virgin board in the same spot.

Tombstone caused by flux residue

Electronics Forum | Fri Jul 15 13:16:08 EDT 2005 | Brian

We have seen this problem in the past and had to deal with similar customer constraints. It's not the flux causing the wetting, but the placement and pad geometries as some have mentioned. To reduce or eliminate the problem, we have changed the ape

What caused this reflow issue?

Electronics Forum | Wed Apr 16 09:25:55 EDT 2008 | hussman

Do you specify copper weight on your boards? This could be the difference between the the boards. Also the finish will be different between the boards as well. These two factors are enough to cause bottom side parts to reflow and fall off. In eit

Contamination causing shorts.

Electronics Forum | Fri Sep 24 09:54:33 EDT 1999 | Charles A. Mohn

I need a memory jog. What is the term for the growth of conductive contamination after a board is in storage or field?

  1 2 3 4 5 6 7 8 9 10 Next

causing searches for Companies, Equipment, Machines, Suppliers & Information