Electronics Forum | Fri Oct 06 12:58:07 EDT 2006 | cw
hi All, Anyone use snap on type EMI sheilding before? I would like to provide a DFM to a customer who currently have a EMI shield soldered on the boards, which i found this not quite manufacturing friendly as it block the view for inspection, plus re
Electronics Forum | Sun Jan 28 21:50:22 EST 2001 | Dreamsniper
Hi Adrian, If you do a "squeegee snap off" during solder paste printing...the result would be a very thick solder paste deposition. I think the correct term is stencil snap off or people say it "snap off distance". =)
Electronics Forum | Fri Jan 12 13:56:59 EST 2001 | adrian
What is squegee snap off and how is it measured?
Electronics Forum | Fri Jan 12 16:29:22 EST 2001 | blnorman
Snap off is the distance from the top of the board to the bottom of the stencil.
Electronics Forum | Tue Aug 29 10:44:01 EDT 2000 | Dougie
Hi, This a dull question I know, but I have a boss who want's an answer... PCB snap-offs: * Design keep them to a minimun to save cost on the PCB * Production want more to stabilise the board when it goes through the process as some PCBs partially
Electronics Forum | Tue Feb 03 02:55:04 EST 2015 | max83
Hi, > > We have a snap-off issue. I guess it can > be linked to z calibration. > Hi, > > We have a snap-off issue. I guess it can > be linked to z calibration. > Hi, > > We have a snap-off issue. I guess it can > be linked to z calibration.
Electronics Forum | Fri Jan 12 17:24:02 EST 2001 | darby
SQUEEGEE snap off is the gap between the top of the stencil and the the bottom of the squeegee blades. You can measure it with a set of feeler gauges.
Electronics Forum | Mon Jan 15 08:24:32 EST 2001 | adrian
I thought the stencil was flush to the top of the board when Screen printing. When does this snap off occur in the screen printing process?
Electronics Forum | Mon Oct 09 04:10:34 EDT 2006 | Rob
Snap on is likely to have less of an effect than soldered on, as the solder forms more of an effective Faraday cage. That said, it depends on how effective you need it. Rob.
Electronics Forum | Tue Feb 13 11:45:27 EST 2007 | realchunks
If you're using vaccuum to hold the board, too much vacuum can cause bad print. This generally occurs during snap off. You can either decrease snap-off time of reduce vacuum.