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October 1998

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Subject:
From:
Mike Barmuta <[log in to unmask]>
Reply To:
Date:
Fri, 2 Oct 1998 15:31:18 -0700
Content-Type:
TEXT/PLAIN
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TEXT/PLAIN (67 lines)
        Glen: Install a UV light inline with your pump/filter system. Circulate
the bath thru this even when not in use. You can purchase one of these at most
aquarium supply stores. They are used to prevent microbial formation in fish
aquariums.
 Another option is to talk to your Au bath supplier. Most of them will offer a
type of fungicide that is compatible with their bath chemistry. Although I've
used these with only moderate success.
                                                Regards
                                                        Michael Barmuta
                                                        Staff Engineer
                                                        Fluke Corp.
                                                        Everett Wa.
                                                        425-356-6076


On Fri, 2 Oct 1998 13:49:37 -0700 glenn pelkey wrote:

> From: glenn pelkey <[log in to unmask]>
> Date: Fri, 2 Oct 1998 13:49:37 -0700
> Subject: [TN] Fab: Cyanide plating bath on "standby mode"
> To: [log in to unmask]
>
> We are planning on running cyanide-based, citrate buffered,
> electroplating bath on an intermittent basis for microlelectronics
> manufacturing.  I understand that there may be a problem with bacteria,
> algae or other microbial contamination if the bath is left stagnant for
> extended lengths of time.  Does anyone have suggestions as how to put
> the bath in a "standby mode" for several weeks at a time and prevent
> this from occurring?
>
> Thanks for any input.
>
> Glenn Pelkey
> [log in to unmask]
> [log in to unmask]
> Maxtek Components Corp.
>
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