of teflon. Yes, I bought such a basket for 3" and 4" wafers, and another
fixture for dipping pieces. It is made of teflon and works for HF. It is
pricey, so you might be better off machining one out of a block of teflon.

Send me an email if you want the vendor contact.


Andrew Sarangan
Associate Professor
Electro-Optics Graduate Program
University of Dayton
Dayton, OH 45469


On Wed, Aug 26, 2009 at 1:35 PM, Yu Wang  wrote:

> Hi,
>
> I want to buy a dipper basket/vessel that can hold one 4" wafer and
> withstand HF solution, but can not find any vendor or manufacturer. (I can
> only find only 2.5" and 3.75" ones). If you know any vendor of  4" ones,
> would you please tell me the vendor's contact information?
>
> Many thanks in advance,
>
> Yu Wang