Electronics Forum | Wed Nov 15 09:36:27 EST 2006 | Board House
Hi AJ, The biggest mistake in the industry today is documentation for lead free assembly required product. We are still seeing prints coming in saying Lead Free / High TG FR4. When in reality standard FR4 170 Tg. material is considered High Tg. and L
Electronics Forum | Mon Jul 21 19:04:34 EDT 2008 | jmelson
I've been using E-teknet for the last couple years, for a wide range of boards from 2 to 6 layers, and one of the 6-layer boards has an insane density and a zillion close-packed vias. Sam at E-teknet guided me through tuning the board design to opti
Electronics Forum | Mon Apr 21 16:25:10 EDT 2003 | kris
Hi, As many must be aware a number of component manufactuers maybe shipping lead-free parts without part number changes. without knowing the datecode tracked on each component it would be difficult to trace components whether they are lead-free or
Electronics Forum | Wed Jan 19 12:34:32 EST 2005 | Robin Daniel
I have an issue where our production team has ran the wrong reflow profile on a no lead product where Indium NC SMQ-230 no lead paste has been used. You can still see the grains of solder after reflow. What I am look for is if anyone has any recomm
Electronics Forum | Mon Jun 12 09:47:18 EDT 2006 | patrickbruneel
Hi Grant, You definitely have a pre-heat problem and not a flux problem. Pallets together with the BNC connectors put a large thermal demand on your pre-heating. 3 zones would be a good investment even with leaded solder due to the high thermal dema
Electronics Forum | Fri Sep 02 05:10:21 EDT 2005 | pyramus
Hi I just would like to ask some assistance how to convert a line using a leaded process to a lead-free process? Is there a need for us to change any equipment? printer/reflow? Currently, we are not yet in full 100% lead-free process yet so most lik
Electronics Forum | Thu Dec 26 15:27:22 EST 2019 | emeto
Lead Free SMT 1. Stencil printer Squeegees s -should have Pb free pair 2. Reflow oven - should be able support Pb- free higher temperatures. 3. In case you have inspection table on the SMT line - should have Pb-free mats(usually different color)
Electronics Forum | Tue Aug 22 16:22:37 EDT 2000 | Dr. Ning-Cheng Lee
There are certainly many pb-free options being considered by the industry. Currently, the most promising alloys appear to be various combinations of SnAgCu. SnAgBi could also be an option, but to use this alloy, there must be no Pb in the surface f
Electronics Forum | Mon May 24 15:50:11 EDT 2004 | Rob
hi all What do you think about soldering pb-free in reflow oven (air) lenght 1,7m (5 zones top,bottom) with max zone temp. 300C? Do you think that this process will be stable? Our max PCb dimension 260x260 mm. When i compare different oven producer t
Electronics Forum | Thu Oct 27 13:22:30 EDT 2005 | moonshine
All solder pastes are worth consideration depending on your needs. What do you need to do? When you know this, run the experiment and determing what best works. I never have found a situation when/where Indium or Kester has failed to perform. This,
