Electronics Forum | Thu May 14 15:51:24 EDT 2009 | dnachristen
I've gone round and round on this very subject with our manufacturing engineer. He prefers to use panel fiducials and I prefer board fids. I've seen the result in placement from bowed PCB's in the machine. Skewing the board a fraction will throw off
Electronics Forum | Mon May 04 14:24:12 EDT 2009 | jimmyboz
Ok, So, If all the servo amps on H1 remained on H1 and the amp you changed is on H2, I have to guess the shifting on H1 is unrelated to the servo prob. Is the shifting unsolderable? if it just looks bad but will reflow, it may have been occurring f
Electronics Forum | Tue May 12 10:03:12 EDT 2009 | daan_terstegge
Hi All, I see more and more components like QFN or LGA with bottom-only terminations,with landpatterns getting finer all the time. I have no ppm-figures of our process, but based on a benchmark study by Agilent I'd say that 500 ppm is a decent value
Electronics Forum | Sat May 30 01:31:49 EDT 2009 | mika
make 4 square rounded corner apertures on the ground pad and the total reduction of 20 % (80 % solder paste). Then you still be able to solder the terminals around. Don't worry to much of the void's. Just following my tips and you will be fine. The
Electronics Forum | Tue Jun 02 02:52:24 EDT 2009 | jasreeves
Probably covering old ground here, but when I read marketing data, brochures etc for new P&P machines, they always state the CPH. You know... 12,000 chips per hour or 18,000 chips per hour and so on and so forth. However, you try and place 0201's at
Electronics Forum | Fri Jun 26 09:09:17 EDT 2009 | boloxis
thanks James, that is good to know about Assembleon. Siemens does that all the time to me nowadays. Anything that anybody want to say to Universal Advantas X ? I benchmarked a Universal AC30 + AX11, an Assembleon MC24 + MC1, a Siemens SX2 + SX1, a Ju
Electronics Forum | Thu Jun 11 10:02:36 EDT 2009 | dyoungquist
Our cleaning process involves the assemblies being completely immersed in the water bath of the ultrasonic cleaner. The assembly has a QFP44 on it. Customer stated that when these assemblies have been cleaned with water in the past (at a different
Electronics Forum | Mon Jul 06 22:17:13 EDT 2009 | emanuel
Thanks Jeff, I isolated the problem to the DC servo part. The GD3 signal in the safety circuit chain is the one that generates this L004 Feedback Error - which by the way next to it I get also (Wn) where n is changing form 1 to 3 every time I push r
Electronics Forum | Tue Jul 07 12:50:33 EDT 2009 | davef
First, we don't know dip about nonbalanced squeegee. We clipped the above gif from: Solder Paste Printing Inspection: An Inside Look; E Litman, System Engineer, Orbotech; SMT January, 2004 Second, Tekscan talks about a product: I-Scan force and pre
Electronics Forum | Fri Jul 17 07:50:32 EDT 2009 | csm
Dear Jepoy We check the oilmatic system and I found a relay is not working, it will arrive until tomorrow. We still have 2 errors and 1 message, we are taking time because we don't have the Fuji CP6-4000 manuals or electric diagrams. we get this ma
