> Mr. Wang,
>
> I work for Corning - the company that makes 0211 glass.   Your inquiry was
sent to me by a colleague at Electronic Visions.   We don't have any experience
bonding 0211, but it has ~7% Na2O and ~7% K20, so it should bond relatively
easily.    The bonding should get easier the thinner the 0211 substrate; and
this glass can be made very, very thin.
>
> I don't know what the properties of "AT-cut" quartz are, but you must closely
match* the CTE of the two materials for the bond to be robust.  The CTE of 0211
is ~ 7.38 ppm/C.
>
>       *Glass is isotropic by nature, so the orientation is not important for
the glass wafer. Matching the CTE of the quartz in the x- and y-direction are
much more critical than the z-axis.
>
> If you need 0211 samples, let me know.  If you do learn what parameters that
0211 bonds best at, and you are allowed to share your info, I'd love to add that
info my files to be able toshare with others.
>
> Good luck and best regards,
>
> Daniel S. Lapp
> Product Manager
> Corning Incorporated
> HP CB 8-3
> Corning, NY 14831
>
> Tel:  607.974.4329
> Fax: 607.974.7618
> e-mail: [email protected]
>
>