Process Hierarchy

Process characteristics:
Amount of material added to a wafer
Amount of material added to a wafer, must be 0 .. 3 µm
0 .. 3 µm
Deposition rate
Rate at which material is added to a wafer
150 Å/min
Excluded materials gold
Material phosphosilicate glass
Measured film thickness variation (+/- %) 15.4
Setup time 60 min
Sides processed both
Temperature 450 °C
Wafer size
Wafer size
Equipment Tylan/Tystar Furnaces (PSG tube)
Equipment characteristics:
Batch sizes 100 mm: 24, 150 mm: 11
Wafer geometry
Types of wafers this equipment can accept
1-flat, 2-flat
Wafer holder
Device that holds the wafers during processing.
quartz boat
Wafer materials
List of wafer materials this tool can accept (not list of all materials, just the wafer itself).
Wafer thickness
List or range of wafer thicknesses the tool can accept
300 .. 1500 µm
  • PSG films have 4-6 wt% Phosphorus.