Process Hierarchy

on front
  I-line exposure (MJB3)
Feature geometry
Shape of feature with dimensions characterized by the minimum feature size
Field geometry
Shape of field with dimensions characterized by the maximum field size
Material photoresist (category)
Min feature size 1 µm
Sides processed either
Wafer size
Wafer size
Equipment Karl Suss MJB3 Mask Aligner
Equipment characteristics:
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.
vacuum 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, silicon on insulator
Wafer thickness
List or range of wafer thicknesses the tool can accept
100 .. 500 µm