>
>  At UC Berkeley, we routinely bonded semiconductor devices with glass frit in
>  the Glass Shop of Electrical Engineering Computer Sciences. The glass used
>  came from Owens Illinois in a "solder glass" development kit.  The glasses
>  were low-melting point, devitrifiable glasses.
>
>  In addition, we used glass frit from Vitta Corp. which had the frits on
>  a release paper with binder which made transfer uniform. I believe Vitta
>  Corp. is still in business. Any patents to Vitta were probably issued to
>  the President, Kitty Etra (sp?).

  Vitta is still is operation.  I have used their frits on the release paper
  called "transfer tape".  Their phone number is (203) 790-8155 and they are
  located in Connecticut.  There is another company which sell frits they
  are Ferro Electronic glass and are in Cleveland OH, TEL (607)-974-4525.
  I have use these frits to bond silicon to silicon and glass to silicon and
  glass to glass.

  Regards,
  Padmaja

>
>