Those were the days my friend. IR did nothing to enhance anything but
delamination and severe blistering, but the sounds were great. Convection
air, on the new hand, doesn't do that. Also, those were the days of pad only
or single trace outers requiring no mask. What happened to that. I mean,
we're getting too crowded on the surface anyway disregarding cost. However,
we can do really well with many fine lines on inners, as always, on light
copper weights.

Earl Moon
----- Original Message -----
From: TPE Engineering TechNet <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, September 14, 1999 8:57 AM
Subject: Re: [TN] Surface finishing -Reply


> Hi Phil,
> I remember the days at Burroughs with the tin lead plate and
> IR fuse. The only draw back to tin lead plate and fuse, is
> that you are putting solder mask over the fused solder,
> which has a tendancy to wrinkle and possibly flake off during
> or after any subsequent soldering operation.
> Ron Hayashi
>
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