Electronics Forum | Tue May 16 13:53:19 EDT 2006 | patrickbruneel
Hi Rob, Don't feel sorry I like these discussions make us think more thorough. This is the supporting scientific paper they used in support of the exemption request. Effects of lead on tin whisker elimination By Wan Zhang and Felix Schwager. http:
Electronics Forum | Mon May 22 11:28:56 EDT 2006 | Rob
Hi Pat, The main driver for the UK on Lead-Free is to avoid leachate in our drinking water & in the food chain. Whilst John Burke's report is compelling & I agree with him on the points he has raised, regarding the leachate issue he has referenced
Electronics Forum | Fri Jun 30 20:39:52 EDT 2006 | johnwnz
Grant, Haven't doen any work with the SN100C paste, the problem I guess is yoru subject to the suppliers flux base so if that is poor then the alloy may not perform as well as it could. We've found Avantec to be pretty good at SMT but have got SN100C
Electronics Forum | Tue Jun 13 17:16:44 EDT 2006 | slthomas
"I believe I was the one who stated in an old post that prying the leads is rediculous." I have been down this road as well. The prez of my previous employer decided that because he could pry .012" leads off the pads with a screwdriver that we had a
Electronics Forum | Mon Jun 12 14:16:23 EDT 2006 | Kip the Expert at all Things SMT
Hi. I agree that the Soltec has weak, low-wattage preheaters, and also, the Soltec's fluxer is flippin' weak too. It doesn't do a good jab of atomizing the flux and getting good, huh-huh, penetration on the holes. I cranked up my Soltec's pressu
Electronics Forum | Wed Jun 14 15:32:16 EDT 2006 | pms
We have recently started building assemblies containing 0402 components (argggg!!). Were using the TM8FC magazines and are seeing alot of miss-picks on the 0402 components. When the feeder advances the part, the part can; jump out of the tape, or tur
Electronics Forum | Wed Jun 21 07:44:31 EDT 2006 | amol_kane
Hi Muse, what do you mean by "with a SAC Ball and SnPb Paste the ball liquifies at a much higher heat"? Actually depending upon the ratio of solder contributed by the pad (SnPb) to the ratio of the SAC solder contributed by the BGA Ball, the SAC sold
Electronics Forum | Thu Jun 22 10:23:14 EDT 2006 | cuculi54986@yahoo.com
I'm no AOI expert by any means, however I spent a few minutes one time about 4 years ago working on an old CR Technology (or is it CR Technologies?) machine so I've been chosen by my company to be the "technical guy" for our AOI evaluation. We are l
Electronics Forum | Wed Jul 19 12:25:47 EDT 2006 | Rob.
Hi Fabione, I'm not being funny, but how did you come up with that choice of machines? There is no way that these set ups are equal in speed or accuracy in the real world. I think you should go back to the drawing board & start again, and depending
Electronics Forum | Thu Jul 20 11:28:40 EDT 2006 | Rob
Mydata are OK, but they will not last as long as the Siplace if running the same volume. They are easy to programme, change over & upgrade - they are very good entry level machines. One thing to remember is that they make use of large scale gang pi
