Electronics Forum | Tue Jan 07 23:38:08 EST 2014 | m_imtiaz
want to know the tolerance the paste height in the solder paste printing. for example if stencil thickness is 7 mil, what will the acceptance level of paste height ( upper and lower) kindly share if any guidelines or formula for the same
Electronics Forum | Fri Mar 29 07:19:32 EDT 2019 | jacoblemaster
I am still in confusion what does it mean? I simply have a heat pump which is the part of the HVAC in my home. It is not used over here I supposed.
Electronics Forum | Tue May 03 07:05:52 EDT 2022 | SMTA-64386201
Yes, I fully agree on the pain of traceability and on laser etching. We are aiming to go the laser route in the long run
Electronics Forum | Tue May 03 07:08:41 EDT 2022 | SMTA-64386201
We do have a CyberOptics SQ3000 that is currently only used for AOI, but I hope to start doing sample 3D SPI with it soon.
Electronics Forum | Fri Jan 28 04:03:51 EST 2011 | grahamcooper22
Print then dispense in the areas you need extra paste. Why can you not use a stencil which has areas etched away around component patterns to thin the stencil down....for example a 150 micron thick stencil etched to 120 or 100 microns in specific are
Electronics Forum | Mon Mar 07 06:44:39 EST 2022 | SMTA-64386201
We previously labelled PCBs after assembly but before AOI. Now we need to trace panels during assembly as well, so have the need to apply labels before the assembly process starts. Our stencils are thus not stepped to accommodate labels. I suppose t
Electronics Forum | Sat Apr 25 19:17:36 EDT 2009 | newtfly
Emilio, I have a fishbone diagram that I can e-mail to you that shows the MANY variables in the paste print process. There is only one way to determine for certain that the printer is doing it's job, and that is with a true 3D paste inspection proc
Electronics Forum | Fri Sep 14 15:23:41 EDT 2001 | davef
I saw your earlier postings on the topic, but am not familiar with Print Pro-E Drawings. Have you tried the common Gerber viewers? Like: * View Mate (View only) - http://www.lavenir.com * CamCAD (View only) - http://www.camcad.com * GC-Prevue (View
Electronics Forum | Sun Apr 26 08:36:55 EDT 2009 | davef
First, in direct answer to your question, DOE printer setup variables (MPM): * Squeegee speed: 0.5 to 1.0 in/sec * Pressure (metal): 1lb/in of blade * Pressure (plastic): 1.6-3 lb/in Second, supprting earlier responses, most people monitor paste hei
Electronics Forum | Mon Jun 22 16:33:59 EDT 2020 | davef
Measuring solder static paste viscosity is fairly easy to do. IPC TM-650 .4.34, Solder Paste Viscosity lists the method and equipment. Just don't tell your customer that it is meaningless because the solder paste is printed in shear, not statically
