Hi All,
William sent this APEX paper to me to upload it to my website. You can get
it from the following URL:
http://www.smtinfo.net/docs/APEX%20paper%202002%20Metal%20Stencils%20for%20G
lue%20Printing.pdf
Daan Terstegge
http://www.smtinfo.net
----- Original Message -----
From: "Coleman, Bill" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, May 19, 2003 9:53 PM
Subject: Re: [TN] Stencil printing SMT Adhesives...
> Sorry
>
> My PDF file did not go through to Technet but you can refer to APEX 2002
> papers or February 2002 issue of Global SMT.
>
> Regards,
>
>
> William E. Coleman
> Vice President - Technology
> Photo Stencil An ISO 9001 Registered Company
> 4725 Centennial Blvd.
> Colorado Springs, CO 80919
> Phone # 719-535-8528
> Fax # 719-599-4334
> Cell # 719-331-2433
> email: [log in to unmask] <mailto:[log in to unmask]>
>
> ----------
> From: Coleman, Bill
> Sent: Monday, May 19, 2003 1:45 PM
> To: [log in to unmask]; 'Steve Gregory'
> Subject: RE: [TN] Stencil printing SMT Adhesives...
>
> Hi Steve and Joyce
>
> I have attached a copy of a Stencil Glue Printing paper that was
> presented at APEX 2002. A version of this paper was also printed in the
> February 2002 issue of Global SMT and Packaging.
>
> <<File: APEX paper 2002 Metal Stencils for Glue Printing.pdf>>
>
>
> William E. Coleman
> Vice President - Technology
> Photo Stencil An ISO 9001 Registered Company
> 4725 Centennial Blvd.
> Colorado Springs, CO 80919
> Phone # 719-535-8528
> Fax # 719-599-4334
> Cell # 719-331-2433
> email: [log in to unmask]
> <mailto:[log in to unmask]>
>
> ----------
> From: Steve Gregory [SMTP:[log in to unmask]]
> <mailto:[SMTP:[log in to unmask]]>
> Sent: Monday, May 12, 2003 3:00 PM
> To: [log in to unmask] <mailto:[log in to unmask]>
> Subject: Re: [TN] Stencil printing SMT Adhesives...
>
> Hi Joyce!
>
> Went to that link and there really wasn't anything about
> printing SMT adhesives there. I did find a Loctite article that describes
> the process of printing variable dot heights from a single thickness
> stencil...from reading it, it looks very similar to the Cookson article
from
> a while back.
>
> http://www.loctite.com/electronics/tp_multipoint.html
> <http://www.loctite.com/electronics/tp_multipoint.html>
>
> In that article it also recommends using a polymer
stencil.
> KJ Marketing in Canada makes polyimide stencils, I tried calling them, but
> it must be quitting time already there...I'l try again tomorrow.
>
> Anybody ever try something like this?
>
> -Steve Gregory-
>
>
>
> http://216.203.210.37/GregM/S02_Shea.doc
> <http://216.203.210.37/GregM/S02_Shea.doc>
>
>
>
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]]
> <mailto:[mailto:[log in to unmask]]> On Behalf Of Steve Gregory
> Sent: Monday, May 12, 2003 3:40 PM
> To: [log in to unmask]
<mailto:[log in to unmask]>
>
> Subject: [TN] Stencil printing SMT
> Adhesives...
>
>
> Hi All!
>
> I've stencil printing adhesives for a
while
> now, but I've run into a problem with this one assembly. The problem is
that
> on the backside of this board there are about 30 or so MELF diodes with
> square endcaps (A JANTX part), and these parts stand-off the board enough
so
> that the part doesn't contact to epoxy.
>
> Cookson used to have a good article about
> stencil design when stencil printing adhesives, if I remember the article
> correctly, it stated that with proper design, you could get the adhesive
> height taller than the stencil thickness...I think they took it off their
> web page because the article was saying you could get variable dot heights
> by stenciling the epoxy, and thus you don't need a Camelot dispenser B^D
>
> I can't increase the stencil thickness,
> because I'm stenciling epoxy for 0805's, and I'm afraid if I go thicker on
> my stencil, the epoxy won't release with the small openings. Does anybody
> still have that *.PDF? Or possibly give me some insight to increase the
dot
> height?
>
> I sure would be appreciative...
>
> -Steve Gregory-
> ---------------------------------------------------
>
>
>
>
>
>
>
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