LAM 9400/Processes/LNF Poly
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| About this Process | |
|---|---|
| Process Details | |
| Equipment | LAM 9400 |
| Technology | RIE |
| Material | Poly |
| Mask Materials | PR |
| Gases Used | HBr, He |
| Date Created | 2016 |
LNF_Poly is designed for etching si and polysilicon in the LAM 9400. This recipe is currently under development and will replace poly_etch_2 as it does not have the same stability problems.
Etch Rates
- Si - 2800 Å/min
- SPR 220 (3.0) - 275 Å/min
- SiO2 - 150 Å/min
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Parameters
| Parameter | Breakthrough | Main Etch |
|---|---|---|
| Time | 10 sec | variable |
| Pressure | 5 mTorr | 30 mTorr |
| TCP Power | 300 W | 600 W |
| Bias Power | 100 W | 90 W |
| Cl2 Flow | 60 sccm | 0 sccm |
| HBr Flow | 0 sccm | 100 sccm |
| He Flow | 0 sccm | 100 sccm |
Sidewall Profile
