I am looking for 2 inch dia <100>  n-type bonded wafer with sandwitched
1um
Si O2 layer.  The wafer may be Si <100>  base with thickness >250um,
SiO2 layer with
1Um +/- 10% thickness and then n-type  Si layer <100> with 20um +/- 10%
thickness.

Does anyone know who sells them and at what price?

TThanks in advance


 Dr. GV Ramaraju
 Department Of  Electronics
 New Delhi, India