Process Hierarchy

on front
  PSG LPCVD
  1.2 10:1 HF dip
  2 PSG LPCVD
Materialphosphosilicate glass
Refractive index1 .. 4Thickness0 .. 50 µm
Process characteristics:
Thickness
Amount of material added to a wafer
Thickness*
Amount of material added to a wafer, must be 0 .. 4 µm
0 .. 4 µm
Batch sizes 100 mm: 24, 150 mm: 11
Excluded materials gold
Material phosphosilicate glass
Wafer size
Wafer size