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Specific Process Knowledge/Etch/DRIE-Pegasus/processB: Difference between revisions

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After etching each wafer is cleaved in two places: Both cleavage lines run across the [[Specific Process Knowledge/Photolithography/masks/travka/fields/Aline| A-line fields]].
After etching each wafer is cleaved in two places: Both cleavage lines run across the [[Specific Process Knowledge/Photolithography/masks/travka/fields/Aline| A-line fields]]. This produces three sites on each wafer where the depth of the trenches can be determined using an SEM.


<gallery caption="The results of process B after 17 and 34 cycles of etching"  widths="500" heights="350" perrow="2">
<gallery caption="The results of process B after 17 and 34 cycles of etching"  widths="500" heights="350" perrow="2">
image:Travkatesting1a.jpg|  
image:Travkatesting1a.jpg|
image:Travkatesting1b.jpg|The 60 nm trenches
image:Travkatesting1b.jpg|
</gallery>
</gallery>