Electronics Forum | Fri Nov 24 01:12:28 EST 2000 | SARRY
Hello! All I am an almost smt biginner. I have a few questions My question is 1. what will be changed to use lead free solder paste in a smt production line? 2. what is the reflow profile for lead free solder paste? Don't just tell me to search th
Electronics Forum | Tue Feb 19 12:28:26 EST 2019 | slthomas
Presumably you're talking about lead free, but you don't say. Heller can probably provide you with a starting point, as rob has already pointed out, but you do need to develop the capability to perform profiling yourself. That oven should have ECD
Electronics Forum | Thu Dec 14 21:53:07 EST 2006 | davef
Use the thermal recipe suggested by YOUR paste supplier, as the starting point.
Electronics Forum | Tue Dec 12 01:52:05 EST 2006 | hemu_me
As we have vitronics oven(SMR610A) made in dec,1997,which has 5 heating zones and 2 cooling zones. For Lead free soldering what should be our baseline for low/medium boards.we have gathered profiles from various paste manufacturers,however we don't k
Electronics Forum | Tue Jan 25 09:15:02 EST 2005 | Marc A
Good info, thanks for passing along. The company I work for (equipment supplier) ran some tests with lead free material in air and N2 environements for reflow. In the air reflow environement it was noticed that the material does not spread, much li
Electronics Forum | Mon Jan 31 16:59:22 EST 2005 | frankracine
Hi Jay, Concerning you PCB, what TG do you expect to use for your lead free process? On my side I have a problem. I order PCB from Canada and from China. My PCB vendor in china is producing a lot of OSP and ENIG PCB, no HASL lead free and in Cana
Electronics Forum | Fri Dec 15 01:37:21 EST 2006 | shrikant_borkar
Hi, Hemendra Recently, We have carried out lead Free Soldering On our 4+1 Panasonic Reflow machine. Results were fine , but its Not Recommended for long Run. but the machine which you have is 5 zone machine and additional 2 cooling zone too. Check
Electronics Forum | Thu Jan 20 17:14:39 EST 2005 | jbrower
Today, I have just finished evaluating Kester's EM907 (SAC305)lead free solder paste and found that for our applications it performs as expected. End result that I am encouraged with the results that we got. The equipment that I used: An SMT2020 to
Electronics Forum | Tue Feb 01 10:25:24 EST 2005 | Scott Baker
Jay - I read your report and was interested to see that you ran your evaluation on a Heller 1500 5 zone. We have been hearing for some time that a larger machine (7 zone min)with higher temp heaters and fan motors would be required. Is yours a "hi t
Electronics Forum | Wed Mar 21 20:02:37 EDT 2012 | hegemon
Lead Free in 5 zones is tough sledding. Start with your manufacturers solder reflow profile and calculate your belt speed by looking at the recommended heating time for the solder paste vs. the length of your heated zones. Set your belt speed so tha
