Mark Identification

ABSOLUTE ELLIPSOMETER

Serial Number

75673980

Filing Date

Apr 5, 1999

Registration Date

Jul 4, 2000

Trademark by

KLA-TENCOR CORPORATION

Classification Information

OPTICAL INSPECTION EQUIPMENT COMPRISED OF AT LEAST ONE LIGHT SOURCE ARRANGED TO INTERACT WITH A SEMICONDUCTOR WAFER IN ORDER TO DETERMINE THE CHARACTERISTICS THEREOF

Electrical and Scientific Apparatus