Electronics Forum | Thu Aug 11 01:22:26 EDT 2005 | fastek
Stefen- Sorry you did not get any money back but I told you you wouldn't. And it's good you listed the company name but they could fold up their tents and resurface under another name in a week so it won't do much good. I hope this hasn't soured you
Electronics Forum | Mon Aug 08 22:32:18 EDT 2005 | adlsmt
If you are using fine lines and tight spacing ENIG may be cheaper than HASL. This is because there is not as much bridging at the board house between traces so they do less touch up. This would probably be even more true with no-lead. We have been us
Electronics Forum | Tue Aug 09 13:25:24 EDT 2005 | pr
From what I can gather, the annular rings are used for grounding when these boards are put in housings. A screw goes through the hole and is torqued down. If there is excess solder on the annular ring, the screw doesn't seat properly. The pallets cov
Electronics Forum | Thu Aug 25 08:54:24 EDT 2005 | stepheniii
Could it be cold solder? Are there parts nearby that might be soaking up lots of heat, or maybe lots of internal grounding near that corner? Once I saw something similar except it was on two different assemblies. Each time it was on the side of the
Electronics Forum | Wed Aug 24 11:34:03 EDT 2005 | dougs
if you don't scrap a board you'll struggle to get this right, i've seen it in other places i've worked where the management wouldn't let me scrap boards to test the profile and also wouldn't let us charge customers NRE for the cost of a board, needle
Electronics Forum | Thu Sep 29 05:37:56 EDT 2005 | dougs
for 0402's you should be able to run the turret at full speed, if you need to slow it down it means that your machine isn't set up properly. use the vision number that the manual tells you and make sure your feeders are properly calibrated, poorly c
Electronics Forum | Thu Apr 27 04:52:06 EDT 2006 | slaine
Ive a 5 zone vip 90, running at temperatures up to 280 degrees, biggest problem we have is with the fan moters siezing up. think we must have changed 8 out of 10 of them ok there 10 years old but it can be a lot of hastle. they sieze absolutly solid.
Electronics Forum | Wed Sep 21 04:50:10 EDT 2005 | Slaine
i set this up for one of nokias manufacturing plants and based it on the value of the board, caluclated the average rework times, worked out the costs of rework and costs of the board then for each type manufactured put a figure on the number of time
Electronics Forum | Tue Oct 18 04:22:04 EDT 2005 | smtek_cc
Currently, I purchased a unit of Vintage 96, MPM UP2040, but it didn't come with any user manual, electronic diagram and part list. I have checked with the factory who sold this machine to me that they lost it sometime ago and don't have any copy.
Electronics Forum | Tue Feb 28 13:46:28 EST 2006 | slthomas
Assuming you're using DOM and shelf life to determine what's good and what's not, you just have to know 1)the rate at which you use it up, 2) how much shelf life is left, and 3) the rate that it goes bad when not refrigerated. From that you can tel