Electronics Forum: solder paste mixing machine (Page 9 of 132)

Very fishy missing solder paste issue

Electronics Forum | Wed Jul 20 16:08:34 EDT 2005 | grantp

Hi, I think the comment about the board height is because the MYDATA checks the board height each time it loads a tool so this is eliminated from being an issue because the machine knows the PCB height. I don't think it's so much what height the PCB

Very fishy missing solder paste issue

Electronics Forum | Mon Jul 18 09:35:42 EDT 2005 | stepheniii

If it were other machines I would suggest the possibility of air kiss blowing the solder away, but mydata's have a release to make sure the air kiss never gets too high. Unless it is not pointing 90 degrees away from the machine like mydata recommend

IPC/JEDEC standard for solder paste printing defects

Electronics Forum | Wed Mar 23 05:17:23 EDT 2011 | arwankhoiruddin

Hi All. I want to know what is the IPC/JEDEC standard for solder paste printing defects. From the brochures of SPI Machines, the recognized defects are excessive, insufficient, misalignment, no solder, bridging, and solder shape error. What document

Very fishy missing solder paste issue

Electronics Forum | Tue Jul 19 11:53:04 EDT 2005 | CLampron

seaK, Check your PCB Thickness check in your program. See if it is checking the PCB at this location. Each board the machine will check to find the baseline thickness of each board run. It does this with a tool. I'm thinking this may be it because I

Very fishy missing solder paste issue

Electronics Forum | Thu Jul 21 08:27:05 EDT 2005 | grantp

Hi, Yes, that's an idea, but from my experience with MYDATA, it would fail test, and the machine would either know it's lost the component, or it would not know, and the component would not be on the pad because the machine would think it's mounted

High-speed solder paste dispensing. MY500, MY600, FX-D....?

Electronics Forum | Tue Dec 30 20:14:30 EST 2014 | jeff701

We've actually bought a second FX-D, which is intended to mainly handle smaller, higher-volume boards. That will still serve to improve throughput. But at the same time, we're also adding another pick'n'place machine which has a rated speed that's 2

Thickness of solder paste from stencil

Electronics Forum | Thu Apr 11 10:14:05 EDT 2002 | BTaylor

We use the ASC vision master 212, our customers wanted a height and volume measurement rather than an inspector doing a visual. We have added this machine to our process, checking height on many preprogrammed locations then this generates a X bar and

Very fishy missing solder paste issue

Electronics Forum | Wed Jul 20 14:56:29 EDT 2005 | CLampron

The mount plane is not the same every time. Our machines are conveyorized and the bottom rail is fixed so the mount plane does change with the board thickness. The stand alone table has a V notch for holding the board with the flat edge on the bottom

Very fishy missing solder paste issue

Electronics Forum | Mon Jul 18 18:02:31 EDT 2005 | seaK

Thanks for the response..... The solder is actually printed okay prior to SMT.... And after placing, found missing solders at middle terminals of 0408 resistor arrays.... Package library is checked, component spec looks fine... I am suspecting the

Very fishy missing solder paste issue

Electronics Forum | Tue Jul 19 12:29:20 EDT 2005 | cyber_wolf

How does the mount plane change if the surface of the board is located in the same place every time ? For example: If you put 2 boards side by side on the Y wagon : one board measures .020" and the other .200" the surfaces of the boards are going


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