Electronics Forum: solder paste stencils (Page 1 of 789)

stepped stencils

Electronics Forum | Fri Feb 24 08:29:25 EST 2006 | davef

Step stencils are not widely used, due to: * Higher cost as compared to uniform thickness stencils * Danger of solder paste smearing at least close to the steps * Difficulty of cleaning the stepped stencil underside (the steps cannot be on the upper

Component stencils

Electronics Forum | Wed Feb 11 18:21:39 EST 2004 | Steve

Does anybody know if there is such a thing as individual component paste stencils, and who would sell such an item? The reason I am asking is because we have instances when we build prototypes that we don't need a full stencil. We may only need to pl

solder paste

Electronics Forum | Tue Apr 12 04:37:52 EDT 2005 | chandran

1.Can anyone explain to me what is the clean and non clean solder? 2.What is the standard solder paste height spec for stencils 4mils,5mils and 6mils? 3.Whatis the meaning for ROHS?

solder paste

Electronics Forum | Tue Apr 12 08:25:43 EDT 2005 | davef

Q1 Can anyone explain to me what is the clean and non clean solder? A1 The trend away from CFCs has lead many users to evaluate switching to no-clean soldering processes. The term "no-clean" is actually a common misnomer when used to describe a flux

solder paste

Electronics Forum | Wed Jul 27 09:58:05 EDT 2011 | davef

Pressure printing systems Conventional stencil printing techniques have fundamental limitations as regards paste handling: The volume of paste available for printing is limited, so frequent replenishment is necessary Paste is difficult to c

solder paste

Electronics Forum | Fri Jul 29 10:03:02 EDT 2011 | blnorman

At a previous location we used the Semco cartridges. Occasionally the operator would have to scrape down the stencil and knead the paste back in. That would keep the paste on the edges from drying out. It was just standard procedure.

solder paste

Electronics Forum | Wed Dec 09 09:47:32 EST 2009 | dyoungquist

I am curious as to why you need to mix.... We use a 500g cartridge with air gun. Our process is remove the cartridge from the fridge, allow it to warm up to room temperature before inserting into air gun, then apply bead of paste to the stencil. N

solder paste

Electronics Forum | Tue Dec 08 08:52:42 EST 2009 | cunningham

How do people prepare there solder paste for screen print? We currently remove them from the fridge and mix them in a 500g solder paste tub mixer to mix the flux and paste together we waste to much paste at the moment as we only use the tub for 1

solder paste stencil life

Electronics Forum | Mon Dec 17 09:38:27 EST 2012 | cyber_wolf

Why scrap paste if there is no degradation of performance? Do your own study to determine this.

cleaning glue off of stencils

Electronics Forum | Fri Mar 03 13:41:43 EST 2000 | pr

Is it o.k. to clean my glue stencils in the same IPA stencil cleaner I use for solder paste? Also if anyone with experience in stenciling glue can lead me away from first time pitfalls I would appreciate that as well. thanks in advance

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