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October 1998

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Subject:
From:
Nüchter Wolfgang (FV/FLT) * <[log in to unmask]>
Reply To:
TechNet E-Mail Forum. <[log in to unmask]>
Date:
Wed, 21 Oct 1998 16:03:03 +0200
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x/y = 10-12 *10^(-6)/K  (Klein-Wassik: softsolder in the elektronics, or how
it may be called in a non-german edition)
Kett-richtung (bended fibers) 12* 10^(-6)/K  (privat comunication by an
sellman)
Schuss-Richtung (straight fibers) 14-15 * 10^(-6)/K  (privat comunication by
an sellman)
z = 50-70  10^(-6)/K  (privat comunication by an sellman)

Hope it helps

Wolfgang Nuechter

> ----------
> Von:  MARS100[SMTP:[log in to unmask]]
> Antwort an:   TechNet E-Mail Forum.;MARS100
> Gesendet:     Sonntag, 18. Oktober 1998 07:34
> An:   [log in to unmask]
> Betreff:      [TN] FR4 thermal expansion
>
> Deso anyone has the coefficent of thermal expansion for
> FR4 PCB material, in both X-Y and Z directions ?
>
> Thanks.
>
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