TGX1
Test grating TGX1 is intended for:
lateral calibration of SPM scanners;
detection of lateral non-linearity, hysteresis, creep, and cross-coupling effects;
determination of the tip aspect ratio.
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Grating description
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Structure
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the grating is formed on Si wafer top surface
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Pattern types
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chessboard-like array of square pillars with sharp undercut edges
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Period
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3±0,05µm
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Edge curvature radius
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less than 10nm
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Chip size
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5x5x0,5mm
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Effective area
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central square 3x3mm
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Height
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0,6µm*
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* - the dimensions marked * are given for information only.
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Fig.1 SPM image of TGX1 grating