Electronics Forum | Wed Jul 04 13:25:03 EDT 2012 | davef
Baking boards to remove moisture takes a lot more energy than you'd think. Following on with this, Chris Hunt from NPL gave a presentation at IPC APEX 2012 about the results of his research ["Impedance Testing for Sensitivity to Delamination in Print
Electronics Forum | Fri Jun 01 11:06:17 EDT 2012 | davef
Post-reflow delamination is almost always caused by entrapped moisture. Here's more from the fine SMTnet Archives ... http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=64774 As Graham Cooper suggests in an earlier posting on this thread, ba
Electronics Forum | Wed Feb 28 14:22:53 EST 2007 | samir
Hey Patrick, have you heard the latest on Al Gore? How typical and this doesn't include all the times Gore flies on private jets adding even more CO2 to the atmosphere. Can anyone say HYPOCRITE. "Al Gore�s Personal Energy Use Is His Own "Incon
Electronics Forum | Mon May 09 10:52:29 EDT 2005 | patrickbruneel
Hannu, First and for all I have a problem with your question "tried and trusted" for the simple reason that you are going to change too lead-free. Ultrasonic soldering or welding is not new, as far as I know it is only used applying the ultrasonic
Electronics Forum | Sat Sep 08 19:04:26 EDT 2012 | jlawson
You might also want to consider process repeatability cross profile performance over time and energy consumption. Also reliabilty is effected by shift usage etc,. Eg could have oven that might appear reliable in one context but not overall. Ie total
Electronics Forum | Fri Jun 01 16:13:45 EDT 2012 | kahrpr
You also need to get with the PCB manufacturer. Their is a lot that can go wrong with that many layers. If the manufacture is trapping that much moisture. you may have a hard time baking it out. Dave and Graham are right about the time and energy. It
Electronics Forum | Wed Aug 08 14:27:00 EDT 2012 | hegemon
Vapor soldering has some advantages for heavy boards, especially in energy transfer to the board and solder. The soldering temperature is fixed by the boiling point of the liquid used, and will not exceed that temperature, another advantage. The tr
Electronics Forum | Wed Mar 21 17:28:37 EDT 2012 | swag
We're in the market for 3 new printers. We've been running MpM's for years. They have been great machines with great service but I want to research DEK Horizon as an option before buying anything. What do you think: DEK vs. MpM?
Electronics Forum | Tue May 08 14:22:18 EDT 2012 | scottjwarren
Wow! Thanks for the replies, everyone. Lots to digest. I'm going to take some time to do some research in these various directions and may have more questions. Thanks again for the recommendations and advice.
Electronics Forum | Thu Aug 30 21:49:59 EDT 2012 | davef
Logic Circuits Based on Magnetic Semiconductors One problem with increasingly dense circuits is heat dissipation. A solution was recently unveiled by Northwestern University researchers using an entirely new logic circuit family based on magnetic se
