you can of course try (110) and (111) silicon wafer
2009/2/5, KUIJPERS, Peter :
> Hi all,
>
> Is there a recipe for wet anisotropic etching of Si?
> Now we use KOH on {1,0,0} wafers, resulting in a slope of 54.7°.
> Maybe another crystal orientation and/or etching agent.
>
> Thanks in advance
>
> Peter Kuijpers
Best regards,
Yours sincerely
Fei Wang
______________
Postdoctoral researcher, Dr
MIC - Department of Micro and Nanotechnology
Technical University of Denmark (DTU)
Building 344, 1st floor, Room no. 130
DK-2800, Kgs. Lyngby
Denmark
Tel: +45 4525 6311
Fax: +45 4588 7762
Email: [email protected]
http://www.nanotech.dtu.dk