Electronics Forum | Thu Oct 21 02:31:27 EDT 2010 | rok
OGER 4003C bounding to Aluminum I am hoping someone might have the solution to my problem I have the following PCB: RO4003 Thickness: .2mm Layer: top single/ bottom ground plane Finish: silver top and bottom .2um Size: 3mmx6mm I need to bound/groun
Electronics Forum | Tue Jul 03 11:56:13 EDT 2001 | Russ Roberts
I am a Manufacturing Engineer working on a new bid. Please help with my question about a new process that I am unfamiliar with: The Assy that we are quoting involves a SMT PCA that is soldered to an aluminum chassis. All surfaces of the chassis that
Electronics Forum | Wed Dec 20 20:34:09 EST 2006 | davef
We're not real clear on the issue. [Got ourselves wrapped around lead (Pb) versus lead (termination), we think.] That aside, comments are: * Boiling point of lead [Pb] is [/K]: 2022 [or 1749 �C (3180 �F)] * It's possible that the material that com
Electronics Forum | Tue May 13 08:26:29 EDT 2008 | davef
First, on your reflow temperature comment: The 183*C focus for reflow recipes for tin-lead solder is a falicy. If you held a recipe for tin-lead solder at 183*C peak, it would never reflow. Recipes for tin-lead solder need to be at liquidus plus 20*C
Electronics Forum | Wed May 14 12:42:16 EDT 2008 | rgduval
Dave, Realized I didn't respond to one of your questions. We pasted and reflowed one board, with no components. This board exhibited extreme dewetting on all pads. The board was LF-HASL, and the paste was Qualitek (which we've used for approximat
Electronics Forum | Fri May 17 15:50:17 EDT 2002 | davef
Now that�s a switch. Most are moving or properly have moved in the polar opposite direction. Dano, has someone been drilling your teeth lately? We use water washable flux to: * Remove solder balls. [Or put another way, we don�t have to screw-down
Electronics Forum | Mon Jul 08 22:03:39 EDT 2019 | eddy2019
Many beginners do not know how to start learning hardware circuits. In fact, the "hardware circuit" is composed of a part of the "unit module circuit". The so-called "unit module circuit" includes: various regulated power supply circuits (like the LM
Electronics Forum | Fri Apr 13 21:02:19 EDT 2007 | Sam
Anyone experience using SnPb wire to gold plated ICs? I have tried to solder the SnPb wire to the gold plated ICs lead, but the surface finishing is dull. Can anyone explain that to me? Why it is not shinny surface? Any recommendation?
Electronics Forum | Fri Apr 25 14:49:34 EDT 2014 | isd_jwendell
If the tab is Sn plated, you can solder to it as long as your iron has enough power (watts). If you continue to have trouble then it probably isn't Sn plated.
Electronics Forum | Tue Apr 22 12:33:35 EDT 2014 | barryg
No we have a battery spring that is soldered directly to a PCB (standard tin plated copper PCB). The Battery spring supplier (and I have no confirmation he makes them or buys them) claims they are tin plated. When trying to solder to them it is very
