Electronics Forum | Tue Apr 15 13:51:56 EDT 2003 | fpcb
hi, we used to place SMDs with adhesive and wave solder machines. Now we try to work with an old stencil printer that we have ane then reflow, and we have no experience.Can anyone tell us by which method stencils are aligned using the 2 cameras of th
Electronics Forum | Tue Apr 15 14:05:12 EDT 2003 | pjc
what is the manufacturer and model of the printer you are planning to use? actually, if its a semi-automatic machine you may not need the cameras to align the stencil to the board. you can "bomb-site" it.
Electronics Forum | Tue Apr 15 14:10:30 EDT 2003 | russ
here is how it is done. 1.Position the stencil in the machine. 2.Position the board onto the PCB tooling as close to being aligned with the stencil as you can. 3.Place mylar or some thin clear material over the board. your printer should have prov
Electronics Forum | Mon Apr 19 21:37:17 EDT 2021 | ouaret
dear all, update: we got that the calibration of SIM is the problem, the distance between SIMs need to be calibrated. can someone help us get the manual that describe on how to calibrate the SIMs? we have a problem with our cyberoptics AOI machine
Electronics Forum | Mon Apr 30 08:34:08 EDT 2012 | almoore
We use a small surface mount connector that has two alignment pins to ensure proper alignment. It works fairly well. I'm thinking that this simple alignment solution might work well with lead less parts like a BGA or QFN. I can hand assemble QFNs
Electronics Forum | Thu Feb 17 14:42:52 EST 2005 | gregp
I would first check the alignment of the flux capacitor to the roto pluker mechanism.
Electronics Forum | Tue Aug 24 03:10:35 EDT 2010 | tennythomas
What is solder mask alignment?
Electronics Forum | Wed Jun 27 15:21:28 EDT 2001 | H.Richter
Hello; Can anyone give me advise on the best way to manually align a 20"x20" stencil on a semi-automatic printer? We have a board with a 16 mil pitch QFP and have difficulty aligning the stencil. We have tried various alignment schemes on the pcb an
Electronics Forum | Wed Jan 23 14:30:09 EST 2008 | operator
Additionally, I have seen the bad align error from incorrect pickup Z. Quad align can freak out sometimes if it sees something it doesn't like. If all else fails I just reboot and 99% of the time the problem goes away.
Electronics Forum | Fri Apr 23 10:53:24 EDT 2010 | evertonsanches
Hello Sir, in this situation I recommend you to check and reconect the conectors of Quad Align Board and also of Quad Align Sensor. Everton - Brasil
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