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 | Wed Jan 26 15:38:46 EST 2005 | TomA
Jay, Yes, we did assigned new part numbers for our lead free components. Our concern was how do we know that this component is lead free. New part numbers was our only way. It made the component engineers cry, but offer them a box of Krispy Kreames
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 | Tue Feb 01 09:21:36 EST 2005 | TomA
I looked breafly at this alloy. My concern was that I had already implemented a SAC 305 alloy at SMT. So any of my mixed technology projects would one alloy (SAC 305) on one side (topside) and a different alloy (SN100C) on the bottomside. Most articl
Electronics Forum | Tue Feb 01 09:54:23 EST 2005 | jbrower
Hi Frank, we're still going to go with FR4 as our prefered material. Our board thickness is .062. We use an on shore and off shore vendor. Prototron I believe offers an immersion tin and excellence in china? offers an immersion tin finish. We fou
Electronics Forum | Sat Feb 05 23:54:37 EST 2005 | sms_don
Hello, I found the previous discussion of lead free profiles on 5 zone ovens very interesting. I had the same concerns, but have recently succeeded in creating profiles on a 5 Zone QUAD oven that have eliminated solder splatter or Solder on Gold w
Electronics Forum | Sat Feb 26 22:32:42 EST 2005 | siverts
The directive is called RoHS. Meaning that is not only the lead that is the issue. The materials need to whithstand a hihger temperature, not only delta T is an issue (but huge). Moisture sensitive devices: how to handle these? You will see an increa
Electronics Forum | Sun Feb 27 17:06:18 EST 2005 | Darby
This is the profile we came up with on a 1500 to satisfy the parameters suggested by Indium. This was on an FR4 1mm thick 4 layer pcb that I would descrbe as medium density, QFP, SOP, AL-CAP, TANTS, D-PAK, MINI SPRING COIL, SOT and CHIPS were all use
Electronics Forum | Fri Sep 22 02:19:25 EDT 2006 | lead free tester
The directive is called RoHS. Meaning that is > not only the lead that is the issue. The > materials need to whithstand a hihger > temperature, not only delta T is an issue (but > huge). Moisture sensitive devices: how to handle > these? You wil
Electronics Forum | Fri Jan 21 13:02:08 EST 2005 | cyber_wolf
If I understand you correctly here are my recommendations: 1. You should not need to have your machine read more than (3) fids to place your sockets. 2. It sounds to me like your currents fids are through holes that are getting paste printed into
