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March 2000

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Subject:
From:
"Cash, Alan" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Mon, 6 Mar 2000 11:10:16 -0500
Content-Type:
text/plain
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You hit the nail on the head with the phrase "machine grounded properly".
That is the key.
Proper grounding will eliminate the problem.  EOS/ESD-S6.1-1991 is a good
Grounding Recommended Practice.  Contact your equipment manufacturer for ESD
grounding information.

Al Cash

-----Original Message-----
From: Stephen R. Gregory [mailto:[log in to unmask]]
Sent: Friday, March 03, 2000 7:04 PM
To: [log in to unmask]
Subject: Re: [TN] Spec for "Lumps" on PCB


In a message dated 03/03/2000 6:40:05 PM Central Standard Time,
[log in to unmask] writes:

> This is where polyimide stencils with appropriate blades come to very much
>  their own .
>  (unless yo' dispense, hehehe)
>  Funny how things go around ....
>  and those base carbon brushes under exit , please .
>  That' reminds me ' ll flush a contact on net , don't shoot !
>
>  paul

Hi ya' buddy!

I'm still amazed at your dispensing processes! I know without a doubt that
you have them down (article in Advanced Packaging a while back about your
place)...I often wonder why we (in the US) have never gone that route? I
suppose "necessity is the mother of invention" has a big part in it. As you
once pointed out, being "down-under" you don't have the luxury of having a
bunch of stencil vendors at your whim...

Still, not having one of them polyimide stencils on hand to see things for
myself, I wonder if it really is as big a problem as what's being portrayed?
I understand that the stencil handles metal squeegees, and if you have your
machine grounded properly, what's the deal?

Maybe someone from K.J. Marketing (if they've ears here) can address this?

-Steve Gregory-

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