Process Hierarchy

  Aluminum Nitride ICP Etch
Process characteristics:
Depth
Depth*
must be 0.01 .. 1 µm
0.01 .. 1 µm
Etch rate 0.2 µm/min
Gas Cl2, BCl3
Material aluminum nitride
Temperature 25 °C
Wafer size
Wafer size
Equipment VLR 700 Cluster -Chlorine Etch Chamber
Equipment characteristics:
Batch sizes 100 mm: 25
Wafer geometry
Types of wafers this equipment can accept
1-flat
Wafer holder
Device that holds the wafers during processing.
cassette
Wafer materials
List of wafer materials this tool can accept (not list of all materials, just the wafer itself).
quartz (fused silica), gallium phosphide, indium phosphide, gallium arsenide, silicon
Wafer thickness
List or range of wafer thicknesses the tool can accept
200 .. 700 µm