Dear Jeaneth,

HF works well to remove oxide off your silicon, but a piranha etch really
cleans (H2SO4 and H2O2 (warm)).

Brent

Jeaneth Corredor wrote:

> I need to clean a silicon surface.  I know that it
> should be made with HF but I don't know the details of
> the procedure of cleaning.
> can some of you give me this information? thank you