Specific Process Knowledge/Etch/Wet Silicon Oxide Etch (BHF)/BHF etch rates
Etch rate in | BHF | 5% HF | 30% HF |
---|---|---|---|
Wet Thermal Oxide [nm/min] | 78.19 | 24.89 | 282.85 |
Silicon Rich Nitride [nm/min] | 0.33 | 0.60 | 2.6 |
Selectivity SiO2:SiN | 189.36 | 41.64 | 119.83 |
The measured etch rates have been made and donated by Eric Jensen from DTU-Nanotech October 2013.