Electronics Forum | Wed Mar 26 09:26:12 EDT 2008 | lloyd
I know you said you checked your clamps but another look will do no harm. we had a very similar issue a while back, and it turned out that the plastic shim under the chase clamp magnet was damaged. This caused the chase clamps not to release properly
Electronics Forum | Fri May 04 12:28:12 EDT 2001 | slthomas
We have had some success printing 20mil pitch with our IIT Proframe. It takes some babysitting, and you don't want your operators to be changing these things out every hour or you'll be buying lots of them. Pulling tension in one direction gives r
Electronics Forum | Mon Sep 21 20:45:55 EDT 2009 | davef
10.4. Pre-Cure Examination. Immediately after material application, the uncured conformal coating shall be examined for: a. Bubbles and Air Entrapments. These defects shall be broken by vacuum, with a sharp probe, or other appropriate tools. b. Bridg
Electronics Forum | Wed May 08 23:18:58 EDT 2002 | ianchan
Hi mates, have this SMT production issue : A) We have a leadless-chip-carrier(LCC) IC package that is classified under the Land-Grid-Array(LGA) package family. B) The LCC is 4mm x 4mm, and has 28 tin plated pads located beneath the outside perimet
Electronics Forum | Tue Mar 20 10:27:36 EDT 2007 | davef
Print styles: Print - Most common print mode * A single print stroke forward on first board * A single print stroke reverse on next board Print-Print (Double Print) * Both forward and reverse printing strokes * Helps to ensure complete filling of th
Electronics Forum | Wed Jun 29 15:42:19 EDT 2011 | dekhead
Yes it is "Print Front Limit" and "Print Rear Limit". Negative value extends the stroke, Depends on software version how useful it will be, as there are differing limits on how much you can extend the stroke. http://www.dekhead.com
Electronics Forum | Thu Oct 27 06:05:50 EDT 2022 | angela t
SMT chip processing short-circuit bad phenomenon mostly in the fine pitch IC pins, mostly in the 0.5mm and the following pitch between the IC pins, because its spacing is small, improperly designed template or printing a slight omission is very easy
Electronics Forum | Thu Dec 16 06:06:52 EST 1999 | Stefan
Check the print gap and check the clamp edges, sometimes the clamps is damaged causing a distance between the PCB and the screen. Good luck
Electronics Forum | Mon Jun 13 14:34:16 EDT 2005 | peter ng
The stencil thickness should be 5.5 mils.The squeeze speed around 20mm/s,print gap 0.15mm,print separation 0.3mm/s.
Electronics Forum | Wed Nov 10 16:19:51 EST 2010 | davef
The 5 thou standoff of your SOIC is probably the minimum. We wouldn't be surprised to see 10 thou. With this, you could have maybe a 6 thou gap between printed solder paste and the bottom of the heat slug. So, you're expecting the rabbit ears of p
