Electronics Forum | Wed Apr 27 11:43:32 EDT 2005 | patrickbruneel
Hi Daan, What we did in the time was pareto analyses on all board designs to determine the critical areas (mainly design errors) and only inspect those specific problem areas. Every batch had a copy of the PC board with problem areas marked and only
Electronics Forum | Mon Apr 25 11:24:31 EDT 2005 | Daan Terstegge
I have a question about inspection, touch-up, and how far you need to go to get a product that meets the required IPC-spec. According to some reports (i.e. "New Study Reveals Component Defect Levels" by Stig Oresjo of Agilent) the average defect leve
Electronics Forum | Fri Sep 16 11:28:20 EDT 2011 | dwanzek
I am looking for input on good blacklight to inspect silicon coating coverage on PCB's. This inspection is visual. Any advice or recommendations on lamps or bulbs?
Electronics Forum | Sat Jun 12 10:23:18 EDT 1999 | Dean
| How are you inspecting pcbs post-reflow, are you inspecting all or sampling. The type of assembly involved would be mainly chip components with a mix of actives and a few 25mil and under pitch. | If you sample what are your fault rates looking lik
Electronics Forum | Thu Nov 19 14:38:49 EST 2009 | doremi
Oh, my dear, printer is just a part of the full picture. Without good and stable pick and place what if the printer is excellent???It is all important - printer, solder paste,stencil,P&P,oven,AOI and of course good process engineers or whatsoever are
Electronics Forum | Wed Jun 11 11:33:07 EDT 2003 | tt
We have been looking around at all of the various BGA visual inspection systems, (i.e. ERSAscopes like contraptions). It seems like the number of different manufacturer's of these types of systems has exploded in the past couple of years, and it lo
Electronics Forum | Fri Dec 02 18:37:46 EST 2005 | Ola
What is the quality worth to You? How much is "to much" for You to spend on a good quality ckeck? How much benefit can You get in return, If You in the first place get the processes straight? These are the main questions that You have to answer Yours
Electronics Forum | Thu Apr 27 21:20:38 EDT 2000 | Dean
Here are some pointers to use during your X-ray inspection. Microcracking is virtually impossible to determine with X-ray. However, I suspect you are looking for "hard" opens. Those are much easier to find visually. If using a paste-and-place pro
Electronics Forum | Wed Jan 09 20:40:58 EST 2002 | ianchan
Since we are on the topic, What we do over here, is to get SMT Technical to machine pick&place "sample component layouts" onto double-sided tape, which in turn is placed onto an actual PCB... QA will take that double-sided tape sample, and using an
Electronics Forum | Wed Jun 11 16:20:41 EDT 2003 | russ
I am in agreement with Stephen. we also use the little mirror with a microscope. Russ
Our Company handle AOI (Auto Optical Inspection) and SPI (Solder Paste Inspection) Machines.
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