Electronics Forum | Mon Aug 30 16:07:06 EDT 2004 | Shean Dalton
Hi Chen, Based on your posted message, the following ideas are for your consideration: "brown residue" The water soluble solder paste you are using could be a water soluble rosin solder paste formulation. Perhaps the solder paste may not be proper
Electronics Forum | Thu Jul 20 16:02:46 EDT 2000 | newf
Will component manufactuers need to look at possible new coatings for pins when to be used in a PB- free enviroment? PT 2 Will new solder joint inspection criteria have to be developed for the use of lead free solder?
Electronics Forum | Mon Dec 05 17:53:04 EST 2005 | KEN
I hate to sound like a broken record but the industry has been placing lead free through-hole parts forever. Now all of a sudden its a problem??? Gold finish, silver, silver paladium, alloy 42, even pure copper. Reliability will be a function of t
Electronics Forum | Thu Jun 29 12:07:09 EDT 2017 | georgetruitt
HOW THICK IS THE BOARD? IS THERE A LOT OF COPPER IN THE BOARD? DOES YOUR CUSTOMERS PROVIDE HEAT RELIEF IN THE BOARDS BARREL DESIGN THERE NEEDS TO BE PLENTY OF ROOM FOR LEADFREE SOLDER TO FLOW, DID YOU CHECK YOUR PIN(LEAD)TO HOLE (BARREL) RATIO? N
Electronics Forum | Fri Jun 23 12:54:53 EDT 2017 | guts1872
We are having issues with top fill and dropping pins on Molex connectors with our KISS 101. Unfortunately we do not have a pre heater and bottom side pre heat with our nozzles is not satisfactory. Most of the issues occur when using a no clean proces
Electronics Forum | Tue Oct 17 03:13:10 EDT 2006 | charless
Apoligies Steve if I did not explain myself clearly. We have made the same design using the same RoHs compliant components (which I am assured by the suppliers are process temperature capable) with both lead and lead free solder. Without wishing to
Electronics Forum | Thu Oct 26 10:29:03 EDT 2006 | Mike
First, Voiding under thermal pad is unavoidable(pardon the pun), unless you can find a way to add sufficient amount of solder paste to cover the area, and match that solder volume on your terminal leads. I build HVM qty's of "QFN" components w/ therm
Electronics Forum | Thu Mar 01 21:20:47 EST 2007 | J.R.
Let's talk pin holes and blow holes. I've been here since the transistion of leaded to lead-free process started for our company and we purchased a wave machine just to keep up with our lead-free orders. we put out 500-1000 boards a day both leaded a
Electronics Forum | Wed Sep 08 06:22:51 EDT 2004 | Tore
Hi all, There seems to be a problem with the major component vendors/manufacturer everywhere; to supply lead free dummy/daisy chain components, in particular BGA-devices, within a reasonable time (not a big fan of 8-12 weeks). If they got them at all
Electronics Forum | Thu Mar 10 05:34:19 EST 2005 | py (france)
Hi all the cost of the nitrogen is lower than the cost of lead free dross, don't forget than the lead free alloy is very expensive. == maintenance be carefull with tools, with a lead bath a key can fall and float, with a lead free bath the key will s
