For Rudolph ellipsometer refurbished equipment: info@entrepix.com Or Call: 602-426-8677 |
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The AutoEL II is designed to provide precision film thickness measurements with simplicity of use. Internal data reduction software offers the convenience of automatically transforming delta and psi into the physical properties of thickness and refractive index. The system’s non-volatile memory allows users to retrieve previously determined sample parameters during future measurements, to speed repeated analyses of similar materials. The system's thermal printer can provide a hard copy of the results.
Specifications:
Operating Wavelength: 632.8nm
Light Source: HeNe Laser
Resolution and Accuracy:
Polarizer or analyzer 0.05º
Delta 0.1º
Psi 0.05º
Resolution and accuracy of measured film thickness and film or substrate refractive index depends on the film-substrate system and the film thickness. Accuracy of 3 to 10 Å and 0.01 refractive index units are typical for silicon oxide films on silicon.
Angle of Incidence:
Standard pin locations 70º±0.02º and 90º± 0.02º
Optional pin locations 60º to 80º
Option pin locations are available at additional cost. Non-pin located angles may be set with specially cut alignment prisms.
Measuring Time (No calculations):
Typical 17 seconds
Maximum 50 seconds
AutoEL II Performance
Thickness Range: 10Å to 3.0µ
Repeatability: ≤Å or 1%, Whichever is greater
Accuracy: ±3Å (Compared to NIST wafers), ±0.005 (Refractive index)