Electronics Forum | Wed Aug 16 13:31:30 EDT 2006 | a_laser
You can stop cleaning after a job when there is no more paste in the apertures. Under wiping should be done with a quality cloth and should leave no paste on the underside of the stencil (assures good contact on the next print and reduces chances of
Electronics Forum | Tue Apr 02 13:35:02 EST 2002 | Mike Konrad
Hi Dave, God no! I am not suggesting that anyone should clean stencils by hand. My answer was facetious. The questioner asked is there was a �cheap and effective� way of cleaning stencils without purchasing equipment. Cleaning stencils by hand m
Electronics Forum | Fri Oct 14 14:09:19 EDT 2005 | bschreiber
Your problem is not the 0.4 pitch. Your problem is the manual cleaning. Manual cleaning will only remove the solder paste from the surface of the stencil. What's more, manual cleaning will force additional contamination into the 0.4 pitch apertures
Electronics Forum | Mon Jun 19 17:00:39 EDT 2006 | a_laser
The most common rates of in-process cleaning (under wipe) I have encountered are once per 5 to 10 prints. But this depends a on a lot of variables. More often is typically better, but more costly in under-wipe materials. (For some more info see http:
Electronics Forum | Mon Apr 01 19:12:16 EST 2002 | Mike Konrad
�Cheap� is relevant. Is $ 3,500 for equipment cheap or expensive? If $ 3,500 is cheap, than we have a solution for you. If $ 3,500 is expensive, then purchase pre-saturated chemical wipes, latex gloves and a hazardous waste bin. As for �effective
Electronics Forum | Fri Oct 21 14:13:08 EDT 2005 | mafc65
1.- Clean bottom and top stencil with a cloth/alcohol at same time.Pay special attention to fine pitch locations. 2.- Clean again bottom stencil side .To prevent any residual of solder 3.- Blow air with a air gun under the stencil to remove the solde
Electronics Forum | Wed May 23 15:11:21 EDT 2018 | jacobidiego
Hi experts, I asked our chinese board manufacturer about their recommended procedure to clean miss-printing. The answer was that they use Absolut Alcohol while use IPA currently and we are moving to a water based cleaning agent with ultrasound. Th
Electronics Forum | Fri Dec 07 01:17:50 EST 2001 | Mike Konrad
The best suggestion one can offer is to view the archive section of this site. It is full of discussions, suggestions, advertising, claims, counter-claims, etc. Just search under the words �stencil cleaning�. Mike Konrad www.aqueoustech.com konrad
Electronics Forum | Fri Dec 07 09:11:52 EST 2001 | Kevin Ham
I would be happy to send you information on effective stencil Cleaning. Please provide me with your email address. regards, kwham@pmrsystems.com
