Best recipe to etch sio2 using CHF3 gas with ULVAC NE-550
Martin,Michael David
2014-05-21
Hi Ryan,
Not sure about relative powers of platen bias and ICP. All of our recipes
have RIE (platen bias) lower than ICP. That etch rate was without back side
cooling, though I bet you might get somewhat better anisotropy with it.
Cheers,
Michael
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From: [email protected] [mems-talk-
[email protected]] on behalf of Ryan
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Sent: Tuesday, May 20, 2014 4:35 AM
To: [email protected]
Subject: Re: [mems-talk] Best recipe to etch sio2 using CHF3 gas with ULVAC
NE-550
Thanks Michael.
Otherwise, if source power is lower than bias, does it damage wafer or
interrupt uniformity and etch rate?
In addition, back side cooling (He) ??
Regards,
Ryan
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