Electronics Forum | Wed Oct 20 07:55:02 EDT 2004 | Rob
Gentlemen, Thanks for your feedback - I think we are going to have to stay with the parts we are using. Cheers, Rob.
Electronics Forum | Fri Nov 05 05:06:18 EST 2004 | rlackey
Thanks Mark, we're not going to go anywhere with that particular supplier now. Cheers, Rob.
Electronics Forum | Mon Nov 08 12:50:04 EST 2004 | Rob
Thanks Dave, I'm guessing they either were just hoping they'd be ok, or were suppling them to people using nitrogen. Cheers, Rob.
Electronics Forum | Mon Oct 18 22:15:11 EDT 2004 | KEN
I have two industry leading customers that have specific requirements for components to survive 30 seconds above 230C. In one case I have a custom ASIC that is heat sinked on the die (to the PCB). The sink pulls heat out of the lead frame very effi
Electronics Forum | Thu Jan 29 00:12:39 EST 2009 | grayman
Hi Armando, I think you have to buy a bigger reflow let say 7 zones to get the correct profile. The reason you are getting that problem is due to short profile time. What is the size of your board? What is the composition of your solder paste? Ple
Electronics Forum | Fri Feb 17 11:01:47 EST 2006 | amol_kane
with lead-free solders, one would expect to find less instances of tombstoning. this is because SAC alloys are not eutectic and melt over a range of temp (usually 217-220 deg C) instead of at a single temperature. therefore the forces due to solder s
Electronics Forum | Wed Jan 28 21:47:56 EST 2009 | padawanlinuxero
Hello! I am having trouble with the new changes from lead joint to lead free joint, we are working on change to lead free, I am using a 3 zone oven reflow, the zone temps are : zone 1 zone 2 zone 3 (top and bottom) 128 208 260 th
Electronics Forum | Wed Sep 14 09:19:30 EDT 2011 | swag
Target those specific parts/leads with a thermal-couple and a mole and try to get the peak reflow temps up to 225 C. It's not a cure but it will improve the apperance of the solder joints.
Electronics Forum | Mon Oct 16 15:46:24 EDT 2006 | slthomas
The wording in your second post re: lead vs. lead free behavior seems to contradict your first post, but I'll assume you mean that the lead free boards fail sooner during vib. testing. My question is, if this is the case, are the parts that are fai
Electronics Forum | Tue Jul 12 16:03:09 EDT 2005 | autoequip
I have recently been testing a new Iron that will be introduced on the market soon. The temp drop is coming in at 30c versus most other irons I have tested drop about 70c the tips are elctroplated and designed for lead free we have been very impresse
