Electronics Forum: pass (Page 92 of 142)

Solder paste handing

Electronics Forum | Tue Jan 16 10:58:42 EST 2007 | realchunks

Yes, it can evaporate. My point was manufacturers suggest cool storage to avoid seperation. I guess if the flux does seperate and get pushed to the top it could have a greater chance to evaporate. I have only seen such seperation on year + old jar

Package on Package BGA Components any issue in SMT?

Electronics Forum | Wed Mar 14 00:34:46 EDT 2007 | pyramus

Hi Muhammad thanks for the reply. However, this is my current situation. We are currently using some BGA's with this kind of packaging BGA over BGA. I have verified solderability of the main BGA (below Bga the one w/c will be soldered to PCB) using

What to buy

Electronics Forum | Fri Mar 09 11:18:29 EST 2007 | sliebl

Not affiliated with Contact in any way, but we do have 2 3AV machines, as well as a 3S. I've been operating/managing these machines for 11 years and we haven't gotten a build yet that we couldn't do. Are there occasionally strange components that we

LGA36 6.5 x 3.5 mm

Electronics Forum | Sat Mar 24 03:06:55 EDT 2007 | aj

Hi Mika, We came across some difficulties with this type of device a couple of years back . After the proto run we needed to touch up the outside fillets to get stability and product to pass test. ( even though the manf. stated that there is no fill

Fuji parts out Signal for poka-yoke component replenishment

Electronics Forum | Wed Apr 04 18:25:07 EDT 2007 | darby

Don't think much of the people who run the line do you mate? "BUT is operator dependent, so if he feels lucky just change the reel without verification and machine will not stop if he didn't follow the procedure having a high probability of Wrong co

Mix Technology Board Processes

Electronics Forum | Mon Apr 23 09:49:57 EDT 2007 | realchunks

Hi T, Gluing parts to the back side for wave solder is a widely used process. Running waves pallets is probably the last way I would want to run a wave. There are just so many things that have to be done to assure good quality first time pass, tha

SAC305 Water Soluble Pastes

Electronics Forum | Tue Jun 05 11:52:01 EDT 2007 | rgduval

We just tested AMTECH's LF4300 with good results. Excellent reflow/profiling capabilities, good processing. And decent cleaning. I say decent cleaning, because we did run into a small issue. While using Qualitek's LF paste, we experienced a lot o

MyData Missing Placements

Electronics Forum | Fri Jul 13 16:52:24 EDT 2007 | jmelson

warning - not all stainless steels are non-magnetic! Quite a few alloys are magnetic, some as highly magnetic as ordinary steel. One quick test is to demagnetize the jaws. If you can find one of the old-style Weller soldering guns with the copper

Tornado Infra Station (handheld)

Electronics Forum | Mon Aug 13 10:51:14 EDT 2007 | davef

This sounds like sales-type teaser posting, but let's see what we get. When comparing convection to IR BGA rework stations, IR stations perform poorly when: * Evaluation board has no power and ground planes. Worst case PWB as IR energy from bottom h

Fuji CP-6 Feeder Maintenance Programs

Electronics Forum | Fri Nov 09 07:28:48 EST 2007 | jola

We have tested the Feeder Master and I have to say, we are not impressed at all. The main thing that we thought would be great with it was to test the feeders in full speed, but you dont get any data out from the machine so you only end up waching th


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