In a message dated 06/16/2000 5:52:57 PM Central Daylight Time,
[log in to unmask] writes:

> Hello all
>
>  We are looking for a printed wiring board system which can operate at
+260C.
>  Any recommendations and inforamtion are very welcome.
>
>  Thanks a lot!
>
>  R.H.

Hi Ruby!!

Hoooo-doggies! 260 degrees C.? Your email address certainly fits!
(HOTMAIL.COM)
I'd have to say, this is a VERY BIG undertaking! I've got a web page URL for
you that has a pretty current and good article about high Tg laminates with
low CTE's that operate in high temperature environments, go to:

http://www.arlonmed.com/papers/aramidcte.htm

It talks about a variety of materials...but I don't think there's much out
there that can go that high. Further still, what kind of components will
withstand that kind of temperature? I surely don't know of any...how will you
solder them?

I've done a little investigation for some potential business that we might
have been contracted to do, and it was for some assemblies that went into oil
well downhole drilling instrumentation. The assembly operating temperatures
are also very high and assembly of those boards present quite a challenge,
but nowhere near what you're asking for at 260 degrees C.!!!

What is this application? Hells furnace controller? hehehehe...

-Steve Gregory-

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