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Penn State
NNIN at Penn State

CHARACTERIZATION EQUIPMENT

KLA-TENCOR SURFSCAN 4500 SURFACE PARTICLE INSPECTION ANALYZER

 

The Surfscan 4500 measures the size, number, and location of wafer particles with scattering cross-sections from .006 um2 to 1024 um2. It features a robotic substrate transporter and optional indexer configurations. Surfscan4500

Features include:

 

System sensitivity, measured with latex spheres on a bare silicon wafer, is 0.2 um diameter.

 

Non-contaminating wafer transport.

 

Patented elliptical mirror detection system maximizes the collection of scattered light while minimizing noise from background light.

 

Overload protection.

 

Substrate diameters: 2-inch, 3-inch, 100 mm, 125 mm, an 150 mm.

 

Better than 1% count accuracy as measured on a VLSI Standard's relative standard.

 

Automated Cassette to cassette operation.

 

Substrate thicknesses from 0.3 to 0.75mm.

 

Identifies particle locations and sizes.

 

Displays and prints color coded wafer maps.

 

 

Training

 

As needed.