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APS versus uEtch

SPTS APS and SPTS uEtch, side by side. Every value shown is drawn from its cited encyclopedia entry.

Side-by-side comparison of selected equipment models
Attribute
APSSPTS
uEtchSPTS
OEMSPTSSPTS
CategoryEtchEtch
Wafer size
Process node
Introduced
Production run
Lifecycle
Lifecycle milestones
Control system
Generation
FamilySPTS APSSPTS uEtch
Specifications
System typeICP-based high density plasma source[1]
Optimization targetDielectric etching[1]
Processing modeSingle wafer processing[1]
ClampingElectrostatic clamping[1]
End-point detectionOptical Emission Spectroscopy (EOS) and laser reflectometry/interferometry[1]
Gases availableO2, Ar, CHF3, He, C4F8, SF6, H2[1]
Process typeVapor-phase, selective, isotropic etch on sacrificial oxide[2]
Process chemistryAnhydrous HF and ethanol (C2H5OH) with nitrogen (N2) gas mixture[2]
Operating pressure125 Torr fixed for the standard processes[2]
Standard recipesRecipe1, Recipe2, Recipe3, Recipe4, Recipe5[2]
Minimum etch rate - Recipe112 nm/min[2]
Minimum etch rate - Recipe238 nm/min[2]
Minimum etch rate - Recipe3125 nm/min[2]
Minimum etch rate - Recipe4153 nm/min[2]
Minimum etch rate - Recipe5175 nm/min[2]

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Sources (2)Every fact above is drawn from these public sources
  1. [1]epfl.chepfl.ch
  2. [2]epfl.chepfl.ch