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Reply To: | TechNet E-Mail Forum. |
Date: | Mon, 6 Mar 2000 11:10:16 -0500 |
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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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