Specific Process Knowledge/Etch/DRIE-Pegasus/Pegasus-4/Nitride Etch: Difference between revisions
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{| border="2" cellspacing="2" cellpadding="3" | {| border="2" cellspacing="2" cellpadding="3" | ||
!Parameter | !Parameter | ||
|Recipe name: ''' | |Recipe name: '''SiO2_res_10''' | ||
|Recipe name: ''' | |Recipe name: '''DOE2/Post_II_21''' | ||
|- | |- | ||
|Coil Power [W] | |Coil Power [W] | ||
| | |2500 | ||
|200 | |200 | ||
|- | |- | ||
|Platen Power [W] | |Platen Power [W] | ||
| | |300 | ||
|50 | |50 | ||
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|- | |- | ||
|H2 flow [sccm] | |H2 flow [sccm] | ||
|25.6 | |||
|15 | |15 | ||
| | |- | ||
|He flow [sccm] | |||
|448.7 | |||
|0 | |||
|- | |- | ||
| | |C<sub>4</sub>F<sub>8</sub> flow [sccm] | ||
| | |25.6 | ||
|30 | |30 | ||
|- | |- | ||
|Pressure [mTorr] | |Pressure [mTorr] | ||
| | |8.8 | ||
|10 | |10 | ||
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{| border="2" cellspacing="2" cellpadding="3" | {| border="2" cellspacing="2" cellpadding="3" | ||
!Typical results | !Typical results | ||
!''' | !'''SiO2_res_10''' | ||
!''' | !'''DOE2/Post_II_21''' | ||
|- | |- |
Revision as of 11:30, 22 August 2023
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Etching of silicon rich nitride (SRN) with recipes developed for SiO2 etching
Parameter | Recipe name: SiO2_res_10 | Recipe name: DOE2/Post_II_21 |
---|---|---|
Coil Power [W] | 2500 | 200 |
Platen Power [W] | 300 | 50 |
Platen temperature [oC] | 20 | 20 |
H2 flow [sccm] | 25.6 | 15 |
He flow [sccm] | 448.7 | 0 |
C4F8 flow [sccm] | 25.6 | 30 |
Pressure [mTorr] | 8.8 | 10 |
Typical results | SiO2_res_10 | DOE2/Post_II_21 |
---|---|---|
Etch of SRN | ~43nm/min [measured 39-50 nm/min over a 6" wafer] | 23-25 nm/min [4" on carrier]] |
Etch rate of Si3N4 | ~49 nm/min [4" on carrier] | 24-26 nm/min [4" on carrier] |
Etch rate of SiO2 | ~42nm/min [41-43 nm/min over a 6" wafer] | 13.7-14.7 nm/min [4" on carrier] |
Etch rate in Si | ñm/min | 11-13 nm/min (10% load, 4" wafer on 6" carrier) |
Etch rate of Mir resist | ~nm/min | ~17 nm/min |
Tested etch time without burning the resist | 3 min (6 min => resist burned) | 30 min |
Profile [o] |