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MEMSnet Home: MEMS-Talk: Resist thickness for nitride etch
Resist thickness for nitride etch
2013-05-08
Haider, Ahmad M
2013-05-08
Lou Chomas
2013-05-09
Haider, Ahmad M
2013-05-09
Andrew Sarangan
2013-05-09
Andrew Sarangan
2013-05-09
MRC gmail
2013-05-09
Haider, Ahmad M
2013-05-09
Robert Ditizio
Resist thickness for nitride etch
MRC gmail
2013-05-09
Hi Ahmad.
I assume that you mean Silicon nitride layer.
It depends on what kind of gas and condition do you use but typically
in my case more than 2 times thickness of conventional Photo resist
layer was enough to endure etch process.
With CF4 gas (RF power ~60W, pressure ~60mtorr, ?? SCCM , RIE 2000
South bay tech.)

Best.

Myung Rae Cho
PhD. candidate
Department of Physics & Astronomy
Seoul National University
Seoul 151-747 Korea
Tel: +82-2-885-2361
Fax: +82-2-882-2361
mobile: +82-10-6475-5495
[email protected]
[email protected]

On Thu May  9 05:29:49 2013, Haider, Ahmad M wrote:
> Hi
>
> I am trying to do an anisotropic etch of 400 nm nitride layer in a RIE
machine. A portion of the nitride is protected by a resist layer on top of it.
Can you tell approximate how much thickness of resist would I need so that the
resist doesn't get stripped off during the nitride etch?
>
> Thanks,
> Ahmad
>
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