TGZ4


 

Calibration Grating TGZ4

Calibration grating  TGZ4 is intended for Z-axis calibration of scanning probe microscopes and nonlinearity measurements.

 
Grating description
Structure:
- Si wafer
- the grating is formed on the layer of SiO2
Pattern types:
1- Dimensional (in Z-axis direction)
Step height:
TGZ4 - 1517±20 nm*
Period:
3±0,05 µm
Chip size:
5x5x0,5 mm
Effective area:
central square 3x3 mm

Fig.1 SEM photo of grating TGZ series 
 
* - the average meaning based on the measurements of 5 gratings with the same height (from the batch of 300 gratings) by AFM calibrated by PTB certified grating set TGS1. Basic step height can vary from the specified one within ±10 % depending on the batch.
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