KLA-Tencor Critical Dimensions Scanning Electron Microscope (CD-SEM) models 8100, 8250, 8300, 8450 can suffer from imaging malfunctions as the result of a failed Column Control Chassis II (CCC2) unit – part number 720-06884-002.  The observed failure mechanism is usually a ripple distortion effect along one or more view axes (see below images for clear examples). GetSpares maintains fully operational KLA SEMs in their warehouse, as well as the ability to repair these critical electronics.  This means parts sent in for repair get fully tested in a functional tool before being sent out – so you can be assured of top quality service.  Contact GetSpares today for replacement/repair solutions!

Front view of KLA 8100 SEM

Side view of KLA 8100 SEM

Rear view of KLA8100 SEM. This is where CCC2 720-06884-002 is located.

Close up view of CCC2 720-06884-002 installed in KLA 8100 SEM

KLA 8100 SEM imaging
Top – electron gun image of wafer site with funcitonal CCC2.
Bottom Left/Right – same site shown when CCC2 malfunctions and causes ripple distortion in image.

KLA 8100 SEM imaging: malfunctioning CCP2 720-06884-002 causes ripple disortion