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| From: | |
| Reply To: | TechNet E-Mail Forum. |
| Date: | Thu, 13 Dec 2001 13:03:30 -0600 |
| Content-Type: | multipart/mixed |
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Have you considered:
1) stencil thickness to a 6 mil or possible to incorporate a stepping into the stencil.
2) Are you kneading the paste?
3) Do you see a change in screening over time or consistently fro start to finish?
4) What are the controls for paste (how long out of frig before use, stirring, reusing, shelf life, jars left open, etc)
5) Stencil debris from wiping clothes? Do you have a build up of lint that could be causing the issue?
6) Pressure of stencil blades?Is there any difference between the front and back blade on print quality?
7) Blade age and wear?
8) Have you changed print speeds and seen any changes good or bad?
9) PCB supprts? Is the PCB supported so it doesn't sag when printing?
Trying to throw out some things to look at, hope it helps.
Kathy
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<DIV>Have you considered:</DIV>
<DIV> </DIV>
<DIV>1) stencil thickness to a 6 mil or possible to incorporate a stepping into
the stencil.</DIV>
<DIV>2) Are you kneading the paste?</DIV>
<DIV>3) Do you see a change in screening over time or consistently fro start to
finish?</DIV>
<DIV>4) What are the controls for paste (how long out of frig before use,
stirring, reusing, shelf life, jars left open, etc)</DIV>
<DIV>5) Stencil debris from wiping clothes? Do you have a build up of lint
that could be causing the issue?</DIV>
<DIV>6) Pressure of stencil blades?Is there any difference between the front and
back blade on print quality?</DIV>
<DIV>7) Blade age and wear?</DIV>
<DIV>8) Have you changed print speeds and seen any changes good or bad?</DIV>
<DIV>9) PCB supprts? Is the PCB supported so it doesn't sag when
printing?</DIV>
<DIV> </DIV>
<DIV>Trying to throw out some things to look at, hope it helps.</DIV>
<DIV> </DIV>
<DIV>Kathy </DIV>
<DIV> </DIV>
<DIV> </DIV></BODY></HTML>
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