Hi Member:
I need some wafers with following structure to do my research project, from
bottom to top: silicon dioxide, silicon, silicon dioxide, polysilicon. We only
have special requirements to the polysilicon layer, for example, grain size,
crystalline, etc.

Can anyone help me where I can find them? If possible, the cost and the choices
we have for the polysilicon layer. Now we only need a small batch and maybe a
little more later.

Thanks and regards,
Yilei