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July 1998

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Subject:
From:
Kathy Palumbo <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Mon, 6 Jul 1998 17:25:15 -0700
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text/plain
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KATHY,

>      How was everybody's 4th? ('cept for the poor people in Florida, I
> heard
> on the news how yours was...bummer, I hope things get better for ya'll!)
> Anyways about these polyimide stencils I've been reading so much about
> here
> lately, I got a couple of more questions before I try one:
>
> 1. Do you spec these in just like stainless ones? I mean like the
> thicknesses
> ect....is there a max and a minimum thickness?
> YES, I USED THE SAME EXACT SPEC THAT I USE FOR MY METAL STENCILS.
> 2. Have you found that you need to change things a little because of the
> good
> paste release? For instance I found that when I first went to metal blades
> I
> needed to spec one mil less stencil thickness because I didn't get ANY
> scoop-
> out anymore...anything along those lines with this polyimide?
> NO
> 3. I'm assuming that the whole kit and kaboodle needs laser cutting, no
> combo
> stencils huh? Ya' know 50-mil stuff chem etched and the fine pitch
> lasered...
> ALL LASER CUT.  STENICL HOUSES ARE ACTUALLY FINDING IT IS MORE COST
> EFFECTIVE TO CUT ALL APERATURES WITH LASER ANYWAY.
> 4. Price? Just ballpark it...I know Kathy as many stencils as you guys
> probably go through you probably get a better price break than I would...
> FOR TOP AND BOTTOM STENCIL (TWO SEPARATE STENCILS) ABOUT 2000 APPERATURES
> PER STENCIL WAS ABOUT $375.  THIS WAS A SPECIAL EVALUATION PRICE.  A $180
> FEE FOR EACH STENCIL WAS WAIVED.  NORMAL PRICE IS ABOUT $735.
> 5. Do they hold up during ultrasonic cleaning?
> I HAVE NOT HAD A PROBLEM (YET), BUT I'LL LET YOU KNOW WHEN I DO.
>
>      That's about it...(I think). You know, back when I first heard about
> electroformed stencils I thought that we were just about pushing the
> limits as
> far as stencil technology goes...but as Gomer would say; "Surprize,
> surprize!!" then he would say; "Gollie, or; shazam!" (GRIN)
>
> Thanks in advance!
>
> -Steve Gregory-
>
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