Electronics Forum | Mon Dec 12 09:39:39 EST 2005 | Amol Kane
thank you devef....My point is this....If you solder all the areas that have Imm Sn on them, there wont be any whisker formation DUE TO THE IMM TIN COATING.....whiskers could still potentially form as a result of COMPONENT FINISHES and effective miti
Electronics Forum | Thu Mar 30 06:32:17 EST 2006 | smartasp
Wow Frank You guys must be assemblyng overengineered Gaming machine boards. You beat me. My definition of quality is fit for purpose and thats the criteria we select our equipment. I suppose the Juki does exactly for you what you need. Still the fel
Electronics Forum | Thu May 25 17:37:37 EDT 2006 | jbrower
OMG! I have to admit that you are awesome in your replies! I've shared your wisdom with my peers and we've decided to turn your coments into a game where we bet on the next very interesting thing that you post. Some of your posts have put my buddi
Electronics Forum | Tue Dec 11 12:15:36 EST 2007 | swag
We just got a contract to build a board with 1400+ SMT placements. This thing is 16" x 12" and the PCB thickness is 0.142". Dead center is a 580+ pin BGA that costs about $600. I'm a bit intimidated... I've done lots of mole profiling on BGA's bu
Electronics Forum | Thu Dec 13 08:07:55 EST 2007 | realchunks
Yes, calling meetings seems to be the way to tackle tuff problems without ever doing anything about them. Make spread sheets and "talk" a good talk so everyone thinks you are on top of your game. Yet you do absolutely mothing and wonder why the pro
Electronics Forum | Sat Jun 28 23:42:40 EDT 2008 | jam2425
It just baffles me as to why a vendor would use, of all things, an arrow as a trademark in the first place. Then stick it on the oppossite side of another marker to boot! I swear, sometimes the way some parts are marked, it's like the manufacterer i
Electronics Forum | Thu Jul 24 22:58:13 EDT 2008 | davef
At the 2004 IMAPS Nordic Conference, Claus W�rtz Nielsson from Nokia Mobile Phones published "The Evolution of Surface Finishes in Mobile Phone Applications" [www.imaps.org/adv_micro/papers/Nordic2004paper.pdf]. Some of the results were: * Corrosion
Electronics Forum | Fri Aug 29 10:23:30 EDT 2008 | vladig
Everyone has been playing a guess game so far :-) but we don't even know what the lead finish is:-) Even old (Sn-Pb finish) days, the ammount of Pb in the plating would be on a single digit level (just to mitigate Sn-whiskers growth), meaning that th
Electronics Forum | Wed Nov 19 06:02:22 EST 2008 | caerleon
Hi all, I have been in the game for near on 15 years and finally something has stumped me! As this site has always provided a wealth of knowledge and at times some amusement I have decided to post it here. Ok. My company uses a test method on an Om
Electronics Forum | Thu Feb 11 15:07:49 EST 2010 | hegemon
With regards to the rework, size and mass of the PCBs is important, in addition to the size of the components that are to be reworked. You might be in the game with $6K (APE Chipmaster Hot Air machine with Preheater or similar setup) if you have sma