Specific Process Knowledge/Etch/DRIE-Pegasus/picoscope: Difference between revisions
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<gallery caption="4 cycles of Process A | <gallery caption="4 cycles of Process A " widths="400" heights="500" perrow="2"> | ||
image:Process A SPTS.png | Left: Recorded with the SPTS software | image:Process A SPTS.png | Left: Recorded with the SPTS software | ||
image:Process A pico.png | Right: Recorded with the Picoscope | image:Process A pico.png | Right: Recorded with the Picoscope | ||
Revision as of 17:53, 17 March 2020
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Process optimization using the Picoscope
The original standard recipes on Pegasus 1 differ in many ways. The second step of one of them is listed below:
| Process A Step 2 parameters | ||
|---|---|---|
| Parameter | Etch | Dep |
| Gas flow (sccm) | SF6 350 (1.5 s), 550 | C4F8 200 |
| Cycle time (secs) | 7.0 | 4.0 |
| Pressure (mtorr) | 25 (1.5 s), 150 | 25 |
| Coil power (W) | 2800 | 2000 |
| Platen power (W) | 140 (1.5) 45 | 0 |
| Common | Temperature 20 degs | |
When running any recipe on the SPTS Pro software, a set of process parameters are recorded (defined in the logging recipe that can be modified like any other recipe) as the process runs. This data can be accessed later by looking up the datalog. During the process itself, one can also activate the 'Trace' to monitor the process parameters in real time.
- 4 cycles of Process A
-
Left: Recorded with the SPTS software -
Right: Recorded with the Picoscope
- 4 cycles of Process D4
-
Left: Recorded with the SPTS software -
Right: Recorded with the Picoscope
