Marcus et al., Appl. Phys. lett. 56 (1990), p. 236
radius of curvature  < 1 nm
isotropic wet etch (HNO3:HF:H2O)

Enjoy!

Albert Folch.

On Jun 27, 23:50, Bahram Ghodsian wrote:
> Subject: Field Emission Devices (FED)
> Dear Members,
>       I wonder if anyone know what the sharpest tip, fabricated
> by micro machining technique for use in a field emission device, is.
> Please provide the value with full details of the reference. I
> apologize in advance if this is happened to be a well known fact.
>
> Thanks
> --
> Bahram Ghodsian
>
>-- End of excerpt from Bahram Ghodsian



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