Electronics Forum | Mon May 24 12:05:53 EDT 2010 | deanm
Did you try Techspray Wondermask W? It is water soluble and can probably be transferred from the bottle to an EFD type syringe for dispensing (we use the P and the PL that way). As far as if it will swell through the reflow, I don't know. We don't us
Electronics Forum | Wed Jun 23 13:34:29 EDT 2004 | df_indy
I am four weeks into my new job, there always seems to be some issues here with PCB every week. Today while I was checking some assemblies with micro-scope, I found a lot of tiny bubbles/blisters on the board. They are just little dots if you look
Electronics Forum | Tue Dec 17 17:47:49 EST 2002 | Tim Marc
Dave, I�m talking about the 75% vertical fill of solder IPC 6.3 criteria (B), and 6.3.1 Fig 6-5. I also referred to the annular ring of the Plated-Through-Hole, being coated with solder mask. Semantics, yes I did refer to the Plated-Through-Hole (Sup
Electronics Forum | Tue Oct 19 12:05:42 EDT 1999 | Wolfgang Busko
Hi Carol, does that happen also when you solder them with an iron ? That�s what I did with some joints using hightemp solderwire and couldn�t notice anything you mentioned. What Brian and Dave said should be worth considering. good luck Wolfgang
Electronics Forum | Mon Aug 09 16:15:30 EDT 1999 | JohnW
| I am having cleaning problems when processing PCB's which have | TAIYO solder mask on them. After processing, hand soldering and | cleaning, a sticky residue is remains, resulting in a cosmetically poor finish with tide marks etc. Other soldermasks
Electronics Forum | Mon Aug 09 18:03:28 EDT 1999 | Earl Moon
| | I am having cleaning problems when processing PCB's which have | | TAIYO solder mask on them. After processing, hand soldering and | | cleaning, a sticky residue is remains, resulting in a cosmetically poor finish with tide marks etc. Other solde
Electronics Forum | Wed Jan 05 15:01:50 EST 2000 | Brian E. Steelglove
A sharp knife and a steady hand. Sorry that is the only way I know because I have had to do it. Brian E. Steelglove
Electronics Forum | Tue Dec 17 17:22:45 EST 2002 | Tim Marc
Thanks Russ. You were right I looked one page too far. We can meet (A,B,C,D). To meet the 75% of (E) the annular ring will have to be scraped. Your help was much appreciated.
Electronics Forum | Mon Jun 28 22:30:06 EDT 2004 | davef
If you find it at the end of your process and you find no defects, work on something else. Now if you are a smooth talker and seek a little adventure in life, you might be able to finesse this thing into a road trip to take a tour of your board fa
Electronics Forum | Wed Dec 11 11:26:25 EST 2019 | SMTA-Norah
Yes, a polite complaint to our board shop later and the next batch didn't have that problem at least. I'm not convinced it's an ENIG issue as there was variability panel to panel in the first place.
