Electronics Forum | Mon May 20 15:58:55 EDT 2013 | sevenzero
Did you try a thinner stencil? More pressure and speed in the printer? What size is the QFN? Maybe the aperture needs to have a + in the center?
Electronics Forum | Tue Jul 30 15:07:40 EDT 2013 | patrickbruneel
I don't think he has any hole fill at all looking at the massive copper area compared to the pin size.
Electronics Forum | Thu Jun 08 05:58:39 EDT 2006 | Base
Hi Efren, Did some simple math... - 100k units/month - 24 days/month - 16 hrs/day - 75% efficiency (ballpark questimate) You'll be looking at a line that does a bit more 50kCmp/hr with an IC/TH placer that does 3.5kCmp/hr (assuming 10 IC's /TH conn
Electronics Forum | Fri Aug 13 11:21:15 EDT 1999 | Earl Moon
| | Ladies and Gentlemen, | | | | As a newly appointed DFM/CE "guru" here, one of my responsibilities has become repair (of course). As I have some knowledge of BGA repair/rework using semi-automated equipment, it naturally follows I would hav treme
Electronics Forum | Mon Jul 31 20:34:58 EDT 2017 | zsoden
Hi all, it has been a bit of a delay but I've finally had a chance to do some further investigation on this. First off, we spend some time to clean the solder bath using Kester Solder Saver and scooped out a lot of crap. We then added about 5kg of
Electronics Forum | Thu May 06 18:18:15 EDT 1999 | JohnW
| OK, my manager read an article on printing glue (aaargghh!)and wants to know why we aren't doing it. We currently use Fuji GLs and GDMs to dispense glue. I've never done it, but have seen it done at NEPCON and other shows. It looks OK, BUT what
Electronics Forum | Thu Aug 11 15:11:35 EDT 2011 | davef
Franx: In response to your follow-up questions ... For the case 1: Q1: Should I apply the glue to the PCB with the same method as I apply solder paste? (with screen printer and squeegee). A1: Correct. Glue can be stencil printed, dispensed, or pin t
Electronics Forum | Wed Jun 02 15:05:59 EDT 1999 | JohnW
| To you all for comment and summary, | | The following things I like without endorsing (PCB/PCBA stuff - outside the great women in my life [many] and without [mostly]): | | 1) A good set of design rules | 2) A good set of design rules meeting pro
Electronics Forum | Sun Sep 19 06:15:41 EDT 1999 | Earl Moon
| | | | | | I am not familiar with the "mil" metric. How many inches is in 1 mil? | | | | | | | | | | | | ...or 10 mil? | | | | | | | | | | | | | | | | | 1 mil= .001 inches | | | | | 10 mil= .010 inches | | | | | Also, it has nothing to do with m
Electronics Forum | Sun Sep 19 06:16:50 EDT 1999 | Earl Moon
| | | | | | | I am not familiar with the "mil" metric. How many inches is in 1 mil? | | | | | | | | | | | | | | ...or 10 mil? | | | | | | | | | | | | | | | | | | | | 1 mil= .001 inches | | | | | | 10 mil= .010 inches | | | | | | Also, it has noth
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