Electronics Forum | Fri Mar 04 18:28:21 EST 2011 | hegemon
First, I would inspect for lack of solder bridges from the center slug to the outside leads. I would then look for evidence that the solder paste has reflowed beneath the component, without leaving too much void percentage. Typically we allow up
Electronics Forum | Tue Dec 13 15:18:32 EST 2011 | ck_the_flip
DaveF, That's correct. This assembly is plain old tin-lead, but our buyer purchases the bare PCB with lead-free HASL plating. My main concern was the regular tin-lead not coalescing with the PCB plating and having a weak intermetallic. I'm not fr
Electronics Forum | Mon Jun 04 23:52:57 EDT 2012 | rway
Actually, if you experience lack of witness marks, you probably have a problem. Witness marks are OK and will not affect your assembly. I assume this is an SMT assembly we are talking about, in which case, this is what your test pads are for. You
Electronics Forum | Mon Aug 27 09:23:22 EDT 2012 | rway
Which military? The US? Being a military contractor, I am surprised at your lack of quality at your facility. I suspect this is non-US military. I don't know where you are located, but being a contract mfg for the military, any military, I can im
Electronics Forum | Tue Feb 12 10:49:46 EST 2013 | slthomas
Everyone that goes through this (the lucky ones, I guess, as lack of growth is not a positive indicator) has to react effectively or temper their growth. To anyone here that's gone through it, what are the top 3 changes that you made (or would like
Electronics Forum | Tue Mar 12 09:23:35 EDT 2013 | SMT Newbie
I was wondering if people could throw out some recommendations for what they think would be a good choice of machine for placing truely odd form components. Odd form meaning different types of custom shields ranging from rings to arcs. I know that
Electronics Forum | Wed Sep 11 15:12:02 EDT 2013 | rway
"Do you think these machines are less appropriate for smaller lot sizes and PCB's with just a few through hole parts?" That depends. It will still save time if your lot sizes are small, as opposed to hand placement. I would not recommend buying an
Electronics Forum | Tue Apr 29 00:07:31 EDT 2014 | padawanlinuxero
Frazz you are right!, I had the same problem, one thing as you mention is to borrow a tool, but in my case I had to let him use my tool cart!, first thing I had to go and get him, since he had to cross the border to Mexico, it was afraid someone cou
Electronics Forum | Fri Nov 07 14:30:32 EST 2014 | klopi90
Hello! I am a lucky user of an ALD515 AOI, a cheap Chinese machine, and I would like to aks if anybody has any experience with it? My main problem is a lack of any manuals or tutorials for learning, what cause other difficulties. I have a one main
Electronics Forum | Tue Feb 10 05:58:14 EST 2015 | dberenguer
We have the possibility to buy a used Zevatech FS710 pick&place machine with vision. I've read that these machines used to be very well built but I'm wondering if it's capable to place 0603 parts accurately since it lacks a laser-type alignment AFAIK
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