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January 2002

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Subject:
From:
David Fish <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Mon, 14 Jan 2002 22:08:37 -0800
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Earl,

While we have you, don't keep us in suspense any longer. Please, is it:
* Six additional weeks of winter?  ...  OR
* Early spring?

Dave Fish

----- Original Message -----
From: "Earl Moon" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, January 14, 2002 7:24 AM
Subject: Re: [TN] finish


> Guy,
>
> The cave is quite resplendent with most ameneties. HASL is not one of
them.
>
> Werner once responded, accurately, any process can be mis-managed as in
the
> HASL thing. One thing that cannot be managed is the copper surface of a
> board about to enter HASL hell. The copper surface is cleaned,
micro-etched,
> rinsed, dried (wherein the biggest process mis-management occurs), then
> introduced to fluxes often incapable of removing the oxidation imparted by
> the drying process. This is my big gripe against HASL now that I've grown
so
> fond of very "thick" IMC's.
>
> Amazingly, I have seen HASL surfaces very flat, shiney, bright, and
> solderable. I don't remember where I saw this phenomonom. Probably in my
> dreams but it was a wonder. I also wonder, if it was not a dream, where
> these conditions were produced. Any board fab folks out there?
>
> As for popping my head out of the cave, it gets very lonely in here, or
not,
> and fresh air always is appreciated. However, I'm not a weather reporter
> based on shadow. What's with this strange passage. No snow covering my
cave
> opening.
>
> MoonMan
>
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