Electronics Forum: manual stencil formula (Page 1 of 41)

manual stencil print 2 passes

Electronics Forum | Mon Dec 22 12:14:15 EST 2008 | pcbbuilders

we sometimes have problems with solder paste release. we use a manual stencil printer. does anyone have any thoughts on using two passes of solder paste on the stencil? i have found that running the second pass gives me better deposits on the fine pi

manual stencil print 2 passes

Electronics Forum | Tue Dec 23 15:06:25 EST 2008 | evtimov

It depends how manual is the printer. you need to control pressure and speed. If you control both by hand, it is difficult to discuss results. If the pressure is controlled by the printer, than you should be able to do it by one deposit. Also is the

manual stencil print 2 passes

Electronics Forum | Tue Dec 23 17:34:07 EST 2008 | davef

We hear you talking two main issues: 1 Solder paste release 2 Thoughts on using two passes of solder paste on the stencil 1 Solder paste release * Check your aperture & aspect ratios [Search the fine SMTnet Archives for more] * Do a better job with

manual stencil print 2 passes

Electronics Forum | Wed Dec 24 20:11:43 EST 2008 | xianhua_tang

hi,brettc! Our stencil openings no more than 4mm * 4mm, you have a larger component of the pads is more than a 4*4? At the same time, with the thickness of the stencil, I would like to increase the printing speed can be improved to reduce the thickne

manual stencil print 2 passes

Electronics Forum | Tue Dec 23 14:45:06 EST 2008 | comatose

One thing that helps is to divide large pads into a series of smaller pads. This prevents the scooping you're talking about.

stencil cleaning

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

stencil cleanin

Electronics Forum | Mon Oct 10 17:47:10 EDT 2005 | jhagve

hi We start to make a product which have a 0.4 mm pitch IC and start having problems with not enough solder printed, to solve this problem we had to increase the manual cleaning, now we are cleaning the stencil every 8 printings, before we was runnin

stencil cleaning

Electronics Forum | Tue Oct 11 10:49:14 EDT 2005 | jhagve

HI We start to make a product which have a 0.4 mm pitch IC and start having problems with not enough solder printed, to solve this problem we had to increase the manual cleaning, now we are cleaning the stencil every 8 printings, before we was runnin

stencil fixture

Electronics Forum | Tue Apr 27 08:13:28 EDT 1999 | wayne sanita

i am trying to design a stencil fixture for manual printing. has anyone done this before or has an idea? thanks

stencil cleaning

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

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