Process Hierarchy

  Resistivity / Sheet Resistance Measurement
Batch size 1
Sheet resistance 0.005 .. 5e+06 Ω/square
Wafer thickness
List or range of wafer thicknesses the tool can accept
200 .. 600 µm
Wafer size
Wafer size
Equipment Prometrics 4-point probe
Equipment characteristics:
Piece dimension
Range of wafer piece dimensions the equipment can accept
50 .. 150 mm
Piece geometry
Geometry of wafer pieces the equipment can accept
circular, irregular, other, rectangular
Piece thickness
Range of wafer piece thickness the equipment can accept
200 .. 700 µm
Wafer geometry
Types of wafers this equipment can accept
1-flat, 2-flat, no-flat, notched
Wafer materials
List of wafer materials this tool can accept (not list of all materials, just the wafer itself).
silicon, silicon on insulator