Manon,
At table 4-12 the header of four column (between "Materials" and
"Reference") says four time the same: "a0". I would expect four different
material properties (together with their metric).
Bernhard


        -----Ursprüngliche Nachricht-----
        Von:    Manon Dutil [SMTP:[log in to unmask]]
        Gesendet am:    Mittwoch, 20. Oktober 1999 17:26
        An:     TechNet E-Mail Forum.; Wanner Bernhard
        Betreff:        Re:      [TN] IPC-HDBK-001

        Bernhard,

        Table 4-12 header in the IPC-HDBK-001 is "Temperature constants ai
of
        coefficient of Thermal Expansion (ppm/3C) of some Electronic
Packaging
        materials"

        If that is what you are looking for...

        Manon


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