I have this, but I seem to be missing some chart info.
Ken


Coefficient, X 10-5
      Material     Lenghtwise Crosswise

      FR-2     1.2 2.5
      FR-3     1.3 2.5
      FR-4     1 1.5
      FR-5     1 1.5
      FR-6     1 1
      CEM1     1.1 1.7
      CEM3     1 1.5
      G-10     1 1.5
      G-11     1 1.5
      GI     1 1.2
      GT     1 2.5
      GX     1 2.5
      Polystyrene     7 7
      Cross-linked polystyrene   5.7 5.7



--------------------------------------------
Kenneth J. Wood C.I.D.
Saturn PCB Design
www.saturnpcb.com
407-340-2668
----- Original Message -----
From: "Gregg A. Owens" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, February 14, 2006 5:46 PM
Subject: [TN] Coeffecient of Thermal Expansion (CTE) Rates


> Dear Technetters:
>
>
>
> Anyone have a source for different CTE rates for common elements used in
> electronic assemblies?
>
>
>
> Any input appreciated.
>
>
>
> Gregg A. Owens
>
> Master IPC Instructor
>
> Executive Director
>
> Manufacturing Technology Training Center, Inc.
>
> 10427 San Sevaine Way, Suite 'I"
>
> Mira Loma, CA 91752 USA
>
> Tel (951) 360-1324 Fax (951) 360-1346
>
> www.mttc-inc.com
>
>
>
>
>
>
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