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April 1999

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Subject:
From:
Ted Tessiert <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Mon, 26 Apr 1999 17:56:47 -0700
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In one of my earlier lives at Motorola, I was exposed to some work while at
their Corporate Manufacturing Research Center where flame sprayed
dielectrics and metals were evaluated for the fabrication of interconnects.
 The resultant coatings ended up being quite rough and were not very
usefull for fine line interconnect applications.  Funny how ideas get
recycled every 5 to 10 years or so.

Ted Tessier
----------
> From: Hogue, Pat (AZ76) <[log in to unmask]>
> To: [log in to unmask]
> Subject: [TN] Flame Spray
> Date: Wednesday, April 21, 1999 4:03 PM
>
>      I had a thought and would like comments.  Flame sprayed coatings are
an
> every-day item for industrial use.  They are easy to apply and can be
used
> to form thin or thick, adherent films on a variety of substrates.
> Over-spray can be easily controlled.  I have also seen papers describing
the
> very good bond between polyimides and metals when the metal is hot.
>
>      Putting two and two together it seems to me than a fine flame
sprayed
> solder alloy could be deposited onto polyimide substrate (or other
> substrates) in a very precise way using a micro-version of the big guns I
> have seen for industrial applications.  It has got to be a lot easier and
> cleaner than selective plating.  I would be a great rework tool.
>
>      Has anyone out there tried this?
>
> Pat Hogue
> Materials and Processes Engineering
> (602) 561-3748
>
> Patrick Hogue
> Materials and Processes Engineering
> Honeywell Satellite Systems Operation
> Glendale, AZ
> (602) 561-3748
> [log in to unmask]
>
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