Chialun wrote:

>   I am in search of a prototype manufacturing source for drilling =
> micro-vias on glass wafers.  Laser drilling or sand blasting seems like =
> good candidates.  I need holes of diameter of about 150 micrometers on a =
> 7740 glass wafer.  Any help would be greatly appreciated.

We use Bullen in Ohio.  Not sure if they can do 150 um.

Al