Dear members,
This question maybe should not be asked here. But I checked lots of
wafer vendor websits and didn't find the right one for me. I hope anyone
can provide soem information. I will appreciate that very much. Thanks.
Requirement:
Diameter: 2 or 3 inch
Type: N-Type
Doping: PHOPHORUS
Orientation: 110
Resistivity: 1~5 ohm cm
Thickness: standard (I hope it's between 100um ~ 300um)
Polish: Two-Side
Grade: TEST or PRIME (doesn't really matter if the price
is affordable)
Quantity: 25
Two things I think I may consider. I will need to etch the wafer. In
order to save my time, I prefer a thin one (~200um will be best) with
still an affordable price. That's the reason I ask for 2in wafer.
Usually it has a smaller thickness. I also hope the dopants (PHOSPHORUS)
concentration is between 10^(15) ~ 10^(16) cm^(-3), which means a
resistive coefficient between 0.6~4 ohm cm. Of course it is not so
strictly required. But I still hope the resistivity is in the order of 1
ohm cm. This special requirement is because of my application. Indeed
2in or 3in is not important, only if the price is affordable.
Thanks!
HTao