Specific Process Knowledge/Etch/IBE⁄IBSD Ionfab 300/IBE process trends
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Some general process trends
This page is supposed to gather some general process trends and good advise for designing IBE recipes.
Etch rate
| Etch rate | Parameters |
|---|---|
| increases with | Beam current |
| increases with | Beam voltage |
| increases with | Beam current * Beam voltage |
| not significantly effected by | Stage angle |
| not significantly effected by | Accelerator voltage |
Etch profile
| Etch profile (goal 90dg) | Parameters |
|---|---|
| improves with | Low stage angle (optimum around 5-10 dg) |
| is effected by | Beam current (low I(B)(400mA) better than high I(B)(600mA)) |
| is effected by | Accelerator voltage * Stage angle |
| not significantly effected by | Beam voltage |