Process Hierarchy

on front
  Microscope inspection
Batch size 1
Magnifications 5, 10, 20, 50, 100
Sides inspected
The sides of the wafer inspected by the process
Wafer size
Wafer size
Equipment Optical microscope
Equipment characteristics:
Piece dimension
Range of wafer piece dimensions the equipment can accept
10 .. 100 mm
Piece geometry
Geometry of wafer pieces the equipment can accept
rectangular, circular, triangular shard, irregular, other
Piece thickness
Range of wafer piece thickness the equipment can accept
100 .. 2000 µm
Wafer geometry
Types of wafers this equipment can accept
no-flat, 1-flat, 2-flat, notched
Wafer holder
Device that holds the wafers during processing.
metal chuck
Wafer materials
List of wafer materials this tool can accept (not list of all materials, just the wafer itself).
glass (category), Pyrex (Corning 7740), quartz (single crystal), silicon
Wafer thickness
List or range of wafer thicknesses the tool can accept
100 .. 2000 µm