Paper
15 October 2015 Circle parameters calibration and data analysis of two-dimensional shape photomask
Author Affiliations +
Abstract
Two-dimensional shape photomask is widely used to calibrate and correct optical precision measurement system like image measurement instrument and to calibrate or distortion correction of camera probe with CCD/CMOS sensor. Among all 2-D shapes, circle is adopted frequently because of its information such as size, form and position. Standard photomask with circle shape is multi-parameter calibrated by high precision laser two-coordinate standard device based on coordinate measurement method. Roundness error is assessed by least square circle method. How center coordinate, radius and roundness of a circle affected by number of measurement points, incident light intensity and optical magnification of micro probe are analyzed. Test results indicate than that standard with circle shape could be calibrated with high precision.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Shuanghua Sun, Zi Xue, and Heyan Wang "Circle parameters calibration and data analysis of two-dimensional shape photomask", Proc. SPIE 9672, AOPC 2015: Advanced Display Technology; and Micro/Nano Optical Imaging Technologies and Applications, 96720Z (15 October 2015); https://doi.org/10.1117/12.2202906
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KEYWORDS
Calibration

Photomasks

Charge-coupled devices

Precision calibration

Interferometers

Shape analysis

Data analysis

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