Electronics Forum | Mon Feb 27 09:31:10 EST 2006 | Slaine
on sections ive looked at with 7 microns of silver and 4microns of copper, the silver had been totally absorbed into the solder in most places and a large amount in some places all the copper as well, so i think the answer is that to provide long ter
Electronics Forum | Mon Feb 27 11:06:12 EST 2006 | melby
We are going to start conformal coating PCB assemblies, and I was wondering about cleaning the boards before coating them. Do I need to clean them and if so, with what? We currently us a no clean solder. I am worried about contamination on the board
Electronics Forum | Wed Mar 01 16:30:46 EST 2006 | operator
Hello all, I am looking for a high temp lead free solder wire to use when attaching thermocouples for oven profiling. I figure something that reflows at 270-300c would do the trick. Can anyone give me a Brand, model# for such a solder? THANKS.
Electronics Forum | Wed Mar 08 08:37:24 EST 2006 | wbartley
Pavel First off I agree with Newton It sounds like the machine may not be level. Check all four feet while the machine is warming up none of them should be moving up or down. Chances are your right front or left rear foot is not at the right height.
Electronics Forum | Thu Mar 02 13:04:22 EST 2006 | Chunks
0603 parts at .2mm spacing is pretty easy. But are there any other parts, like fine pitch QFPs? Is your board HASL or something else? Is there resist/mask between all pads? If it's just 0603's at .2mm, then you can probably go 7 mils and get good
Electronics Forum | Fri Mar 03 11:24:08 EST 2006 | Ken
I would appreciate comments from anyone familiar with Fuji CP6's and CP6E's. Essentially, I would like to understand the important differences between these two machines. Considering that we use FujiCAM as a programming tool, does a CP6E require a
Electronics Forum | Tue Mar 07 08:44:10 EST 2006 | billyd
Craig - You should not use the leaded parts, as you are, in all likelyhood, going to see massive voiding. We just went through this same deal where I work, because a manufacturer sent us the incorrect parts. You can go with lead free parts with regul
Electronics Forum | Mon Mar 13 14:26:45 EST 2006 | Wave Master Larry
Well, im not sure what plane you guys are on, but I can back up my what im talking about. Ya see I wnet to Soltec traingin back in 1995 for our new wave. I got a diploma proofing that I know what i'm talking about. no one else in my company has on
Electronics Forum | Fri Mar 10 19:22:32 EST 2006 | bman
I hate to ask an obvious question, but are you sure all of your thermocouples are attached properly? I just can't imagine a 3X5 board having such a large Delta T unless it has some really odd parts on it. You sound like you know what you're doing,
Electronics Forum | Wed Mar 15 09:28:30 EST 2006 | mapell
Vick I would not think what your seeing is normal. Just guessing without a profile but.... - not reaching peak temperature - not enough soak time or mild ramp to burn away the flux - shortened TAL, not allowing proper time for the solder to wet - lo
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