Electronics Forum | Thu Mar 17 22:47:29 EST 2005 | davef
That would be our first guess, also. Get the stuff analyzed to be sure. Another clue is if the white stuff disappears when you hit it with hot air from a rework station. The hot air is activate the flux. Good troubleshooting tool, but you're subj
Electronics Forum | Tue Jul 12 08:44:58 EDT 2005 | jdengler
JBC is offering "Lead free" tips now. They have this on the web site: "JBC recently released a new series of tips featuring a thicker iron bath that we find more resistent to aggressive additives and flux as found in lead free alloy." We have not d
Electronics Forum | Sat Feb 12 05:37:38 EST 2005 | mattkehoe
Lead free samples are available at http://www.sipad.com/SIPADLeadFree1.htm No stencil needed, the boards are pre-loaded with paste in a solid form and adhesive flux. Check it out. Matt Kehoe
Electronics Forum | Sun Sep 23 18:59:59 EDT 2007 | darby
I presume you are looking at low melting point solders. Firstly, I would consider running BOTH sides with the same paste - this will cut down the opportunities for a mix up with rework or retro-fit. Secondly, check that there is a cored wire availabl
Electronics Forum | Tue Sep 16 20:41:41 EDT 2008 | davef
Q1. Can anyone tell me if there is a procedure for storing raw PCB's? A1. Yes, there are thousands of procedures for storing raw PCB. Why so many? Everyone writes their own procedure. Generally, they say: * Boards require individual separation and p
Electronics Forum | Tue Feb 21 15:09:11 EST 2006 | russ
Read your flux data, it will answer all of your questions
Electronics Forum | Tue Dec 19 16:26:24 EST 2006 | samir
Grant, Newer lead-free fluxes have 6%-10% solids content - more activator, therefore leave more "visible" residues. Old technology tin-lead fluxes got down to as low as around the 4%-6% range (I'm going off memory, so me might be wrong)... You'll
Electronics Forum | Tue Sep 16 09:35:12 EDT 2008 | babe7362000
Can anyone tell me if there is a procedure for storing raw PCB's? We currently are seeing an issue with lead free boards with dewetting. We tracked it down to one or two datecodes, but not all of the boards have dewetting. Is there a expiration da
Electronics Forum | Sun Dec 11 22:39:36 EST 2016 | ppcbs
We have been using the Amtech line for over 12 years now with all of our PCB and BGA Rework. The NWS-4400 is mildly active and will give better results with Lead Free Solder. Note that the LF-4300 is considered a No-Clean. However it will show lea
Electronics Forum | Mon Sep 24 18:03:43 EDT 2012 | rmazenha
Hi, i am using AIM 264-5 No Clean flux for soldering alpaca pieces on PCB boads, but i am having problems: poor filling and no solder. I am using SAC 305 lead free solder. I have tried to change flux pressure, time, ammount as well solder speed an
