Take a look at:
http://www.ammt.de/html/wafer_holders.html

Bill Flounders, Ph.D.
Technology Manager
Berkeley Microlab


Pimpin Alongkorn wrote:
> Dear Folk,
>
> I would like to purchase a wafer holder for wet etching that can protect
> a backside of wafer from etchant solution such as HF, TMAH and KOH.
> Could you recommend me a Japan company (or other countries are O.K.)? It
> will be invaluable help for me. Thank you very much.
>
> Alongkorn Pimpin
> THT laboratory
>
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