Electronics Forum | Thu Jan 12 10:05:13 EST 2006 | davef
There's a lots comparisons like this on the web. Here's one: Westwood Associates said on 8/12/2003: ||HASL||OSP||ENIG||Pd||Tin||Silver Flat||no||yes||yes||yes||yes||yes Solderjoint||Cu-Sn||Cu-Sn||Ni-Sn||Ni-Sn||Cu-Sn||Cu-Sn Contact||E-test, ICT||no|
Electronics Forum | Tue Feb 07 13:39:42 EST 2006 | gregoryyork
You can use straight forward Tin/Copper but it flows very poorly so solderability is an issue. Dosing with Phos improves this but need to stay on top of it. We have supplied some 3.8%Ag alloys for flow they work well but you get a small 'chill point'
Electronics Forum | Fri Feb 17 08:47:08 EST 2006 | grantp
Hi, In Melbourne expect about A$15 per hour for basic labour, A$17 per hour for team leader level, and $20-$25 per hour for better, but it depends on how talented. If your talented, you could make a lot more in the right company. Australia is low
Electronics Forum | Mon Feb 27 17:08:15 EST 2006 | GS
3,5 ugr/cm2 NaCl) or power components, or Raw PCB. Nothing with the solder process or fluxes. Ion Chromatography analysis was necessary to help understanding of contamination origin. When occasionally we run TIC on a NC assembled PBA (Paste ROL0 or
Electronics Forum | Sat Mar 11 15:05:54 EST 2006 | Kerm
Hi Craig: I agree with muse. The problems almost always will show up later on duringg life cycles in terms of reliability problems. While the solder joints may look acceptable right after production there is no guarantee of meeting the reliability r
Electronics Forum | Mon Apr 03 01:35:31 EDT 2006 | darby
I have a less than perfectly designed pcb requiring double sided lead free reflow. Several components from either side will detatch using the standard process. If I was using Sn63Pb37 I would just dispense some adhesive after paste and cure at the r
Electronics Forum | Fri Apr 21 17:46:29 EDT 2006 | SD
First of all, do not use kapton tape! It tends to cause a dewetting effect around the tape. A call to Humiseal will explain why. There's not really a blanket answer to your question.... Removing cured liquid mask can often result in a fillet ef
Electronics Forum | Thu May 18 03:30:05 EDT 2006 | Grant
Hi, Guru, you are completely full of crap. I have had three MYDATA machines, and battled with accuracy the whole time we had them. We did every upgrade, and added the latest feeders and line scan cameras. In the end we could not keep the accuracy g
Electronics Forum | Thu May 25 10:47:40 EDT 2006 | Chunks
My my my, where do I go with this?!?!? SMT Guru Expert Superior Process God, I agree with you about "thinking outside the box". We do that at my facility everyday. But there are times when you need to "jump thru hoops". It's a fine balance in co
Electronics Forum | Fri Jun 02 13:05:42 EDT 2006 | stempfle
Efren, Most of the previous posts offer valuable information. Certainly you should consider panelization of the individual circuits. Otherwise you'll waste valuable production time passing 3" boards along the line. Your orig estimate of min thruput
