Electronics Forum: timely (Page 835 of 1078)

Nitrogen in the Reflow Oven

Electronics Forum | Mon Oct 14 17:23:36 EDT 2013 | markhoch

Thanks 'hege for the info. Have you seen a reduction in solder defects after switching from Air Reflow to N2 Reflow? I'm curious, because in my experience of over 20 years, working at five different companies, (Jabil being one of them), I've never u

Paste printing fine pitch components

Electronics Forum | Tue Oct 22 09:20:31 EDT 2013 | swag

Yes, car rims (and brass tubas)! You finally helped me get to the bottom of this expensive issue. We fired the culprit. It's the same guy that was using the ultrasonic stencil washer to clean car parts on night shift. It might be snake oil, I don

Conventional Hand Assembly

Electronics Forum | Wed Oct 16 12:51:46 EDT 2013 | deanm

Why isn't the data that is collected being used? Either use the data or stop taking it. Without AOI to improve your process you need to do this: 1. Collect data on all defects found by your inspection department and have it in a form such as a sprea

Using RoHS Components in a leaded paste world

Electronics Forum | Thu Oct 31 17:34:37 EDT 2013 | hegemon

Keep in mind that you may need to assure that there are no pure tin finishes remaining on your parts. A general idea is that parts with pure tin (RoHs) finish will need to be plated with tin-lead solder to avoid the possibility of tin whiskers formi

Solder joint dewetting or non wetting

Electronics Forum | Tue Nov 05 09:57:45 EST 2013 | cuperpeter

Hello All, We have a problem with dewetting of solder paste. Problem is most visible on the pads without components (see attached pictures) and occurs randomly, 20% of PCB's. Pcb supplier sent us a cross-section of pads with thickness of Cu, Ni and

BGA inspection in mass production

Electronics Forum | Fri Nov 22 16:55:30 EST 2013 | hegemon

Head and Pillow defects beneath a BGA are difficult to find, no matter what the equipment is on hand. Since you do not appear to have access to tools that would help you, or $$ to purchase said tools, I might recommend that you use an outside source

ESD kapton tape for SMT production use

Electronics Forum | Tue Jan 21 13:40:00 EST 2014 | rgduval

If you're using the Kapton tape to protect the gold fingers from solder splatter, my first instinct is to say,yes, you do need it. I've had the pleasure of paying to have gold fingers reworked in the past. It is not in-expensive; certainly not equa

mydata 19 error

Electronics Forum | Thu Feb 20 13:25:18 EST 2014 | brendansales

Dear Rob, Thank you for your quick response! There were Z locks on the Midas head area, 2 little solenoids like you mentioned. Previously I had the first error code (F-AXIS-C/9) and after fiddling around, randomly manual unlock the Z locks it came

Samsung CP45FV Neo Programming

Electronics Forum | Fri Apr 11 03:25:57 EDT 2014 | JB

Hello Len. Thanks for the update, I wouldn't say we are getting the hang of it but we are progressing, I now have a vision programming guide which isn't much help when parts are failing, it just states the obvious, set up sizes etc. The light that y

Samsung CP45FV Neo Programming

Electronics Forum | Fri Jun 05 04:07:15 EDT 2015 | buckcho

There are several way to tech this. I used this machines some time ago and maybe I am rusty, but you can try two ways that I can think of: -use IC package with 4 leads from one side and 1 big from the other. You can play here a lot, for example you c


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