Electronics Forum | Thu Sep 21 15:23:10 EDT 2006 | Grant
Hi, I don't want to sound too negative here, because this forums been an incredibly help over the years, however does anyone else think it's a bit ugly. Perhaps it's just me, but it has not really changed over the years I have been using it, and it
Electronics Forum | Fri Sep 22 17:18:40 EDT 2006 | basem
Thanks Rob, thanks much. Bill, take it easy. You have a well controlled image (considering the brain-washing machine of the American media) of Syria that is fairly wrong. I lived in the US for six continous years and I really know what I am talking a
Electronics Forum | Thu Oct 05 10:37:10 EDT 2006 | David
Hello all, We have problem with voids in one of our product. We are soldering IC (package SO8) with under the components grounding connection. The ground pad for this component has 3 via holes (before producing we have to cover this 3 holes from b
Electronics Forum | Sat Oct 21 19:25:42 EDT 2006 | Ola
I assuming that you already have checked the fuses? Also, check all the power: +5V, +12V, +-24V, etc. We had to change our PSU once, after a major power-drop due to a thunderstorm. But you should be ok if you can pinpoint what type of voltage you are
Electronics Forum | Sun Nov 05 23:01:53 EST 2006 | Sxsxcx
ok, sorry ,750 was deg F and which I said 350~400 were deg C, I got a mistake. As I know, we use 660~720 deg F to do reworking for lead free solders such as SAC series and SnCu0.7 series solder to protect irons and components on boards. when temp.
Electronics Forum | Sat Nov 04 07:46:36 EST 2006 | itwasbill
Hi all, What are the pro's and cons of pasting ahead? The definition of pasting ahead for this question is the act of pasting 10 or 15 pc boards and then running then repeat. I do not like this philosophy. I'd prefer to paste, run, reflow then
Electronics Forum | Tue Nov 07 18:18:03 EST 2006 | Andrea
I am wondering how to move from hand soldering our ceramic caps to doing a reflow type process. The reason for the change is too many cracked ceramic caps. I have asked our vendors to assemble our boards via reflow but because of our hardware (swaged
Electronics Forum | Tue Nov 14 04:52:57 EST 2006 | Loco
To make it even more compicated, you have CTE before Tg and after Tg, altough the after Tg is way more important, because the expantion ratio will be much bigger, a pcb supplier will usually give the before Tg value. To come back to the delamination
Electronics Forum | Mon Nov 27 16:52:18 EST 2006 | greg york
Hi Bill Mostly in the UK, but originally saw the problem when I helped on one install in Malta on a chinese mc set at 5 degrees and had nightmare bridging. changed the angle to 6.5 ish and results were instantly better actually better than what they
Electronics Forum | Tue Nov 28 15:49:33 EST 2006 | Kerwin Hooshey
Grant, but that doesn't change the fact that you have to run the board again a half-hour-later...hahaha. Also, the Chinese are FAR from being innovators...rather, they're out-of-control "immitators" of products, breaking patent laws and reverse engi
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