An automated defect inspection system has been invented and is used on patterned
wafers, whole wafers, broken wafers, partial wafers, sawn wafers such as on film
frames, JEDEC trays, Auer boats, die in gel or waffle packs, MCMs, etc. and is
specifically intended and designed for second optical wafer inspection for such
defects as metalization defects (such as scratches, voids, corrosion, and bridging),
diffusion defects, passivation layer defects, scribing defects, glassivation defects,
chips and cracks from sawing, solder bump defects, and bond pad area defects.