Electronics Forum | Tue Dec 23 07:38:35 EST 1997 | raymond
how to determine the optimum solder paste height ?
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 | Wed Jan 08 08:20:52 EST 2014 | emeto
To most of our boards I give 20-30% tolerance in both directions. From experience if you have big aperture on your stencil, the squeegee will scoop certain amount of paste from this aperture and you will see lower height. Depending on your board supp
Electronics Forum | Thu Jan 30 01:38:22 EST 2014 | m_imtiaz
thank for good input, any documented standard available from any well known body (IPC standard)
Electronics Forum | Fri Jan 24 08:14:24 EST 2014 | davem
m_imtiaz, Over the last 15 years or so I've found that using the stencil foil thickness +2mils/-0mils has worked very well. For example, if you have a 5mil stencil thickness your upper control limit would be 7mils and your lower control limit would
Electronics Forum | Mon Dec 29 14:47:36 EST 1997 | justin medernach
| how to determine the optimum solder paste height ? Ray, This is a gross misconception within the industry. There is no optimum solder paste height, per say. The effectiveness of a solder joint should be quantified in volume. Use your process as
Electronics Forum | Thu Apr 12 13:21:59 EDT 2018 | emeto
Hello fellow experts! Does anyone have a SPI machine that can calculate Cpk for the solder paste height across the PCB or for selected locations? Any feedback will be appreciated.
Electronics Forum | Thu Apr 12 16:50:44 EDT 2018 | esoderberg
Parmi SPI does CPK
Electronics Forum | Wed Apr 25 18:34:19 EDT 2018 | padawanlinuxero
kohyoung does If you can wait until tomorrow I will send you screenshots of the software
Electronics Forum | Fri Apr 27 10:05:12 EDT 2018 | emeto
Thank you! That would be great.
