Electronics Forum: pass (Page 49 of 142)

ALL SERVO DRIVERS DO NOT TURN ON FOR CP8-42

Electronics Forum | Thu Nov 03 14:33:40 EDT 2016 | csm

Dear JummyB We noted that when the machine is initializing, and when all check step pass, we just push ready button and the main relay or contactor must be activated but is not, it looks like one Card in front of the machine where all the drivers ar

Chip Component Stacking

Electronics Forum | Tue May 02 16:37:16 EDT 2017 | travishemen

Our customer wanted us to stack two chips but I convinced them to let us place them side by side on the same pads. It had the same effect. They were 0603 size components and the pads were big enough that they still passed IPC for solder quality. I

Reflow Profiling

Electronics Forum | Tue Jul 25 09:30:08 EDT 2017 | cyber_wolf

"We use Mistral 360 with glass top where you can "see" your process while board pass through the oven, you see when the paste dry, you see when the reflow starts, what is the time above liquid etc etc, and can adjust up or down with few degrees in ea

Component Drop on Second side of the reflow

Electronics Forum | Mon Aug 14 03:38:37 EDT 2017 | spoiltforchoice

The pads in the datasheet should suffice. The TDK part really isn't all that big but its reflow profile indicates it is not exactly the most tolerant device with regards to heat. 245C for 5s is not a lot, I would check very carefully that your profil

uBGA (.5mm pitch) printing woes

Electronics Forum | Fri Sep 22 14:10:19 EDT 2017 | slthomas

Just for the sake of passing along the information, the fine grained stencil provided zero improvement over the standard PhD stainless and was not nearly as helpful as the baked-on nano-coating. We probably won't be trying that again unless we go und

AR/UR Coating Application

Electronics Forum | Tue Feb 06 16:36:51 EST 2018 | dontfeedphils

For anyone looking back on this post, I ended up figuring out something that will work for my process. Jack up the atomization pressure on the guns, lower material flow, quicker-lighter coats, less time between coats, and more coats. Smooth, even f

Universal Axial Model 6287A communication

Electronics Forum | Tue Mar 06 08:03:42 EST 2018 | wolverine55

Thanks Don, I will pass this info on to the Maintenance department at the plant where this machine is located. I did see an exec stored in the machine's host computer while it was there, it was under a UIC filename of BC237A. They have new 3.6 volt

Stencil life

Electronics Forum | Fri Apr 20 03:04:24 EDT 2018 | tsvetan

We usually replace stencil when we start to get problems with the solder paste printing i.e. uneven solder paste deposit etc. Until then it doesn't matter how many years ago it's manufactured, but how many prints it passes and if the operators didn't

OEM customer lawsuit

Electronics Forum | Thu Jun 28 16:46:30 EDT 2018 | applebar

thank you for the reply it was our error- there was a change notice via a spreadheet in a resistor value; the operator used the old reel/old value. Customer did not pay for AOI. Customer supplied tester passed all the boards, even with the wrong (u

Production Route Barcode Scanning

Electronics Forum | Sun Nov 04 01:20:38 EST 2018 | alexeis

Hi Rob, We have a solution, called DCollector, that works with serial numbers and route card. Also, if you have a fail, you must write it and serial can't continue in the route until you fixed it and report pass. If you want more information, plea


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