Patent ID: 6870948

Claim:
A method for numerically analyzing a growth degree of grains on a surface of a semiconductor wafer, comprising: selecting a numerical target zone in an image file for numerating the growth degree of grains on a specific portion of the surface of the semiconductor wafer, the image file being generated by scanning the specific portion on the surface of the semiconductor wafer using a scanning electron microscopy (SEM); performing a standardization with respect to an image data of respective pixels disposed within the selected numerical target zone to obtain standardized image data values; comparing the standardized image data values of the respective pixels with a predetermined threshold value; counting a number of pixels of which a standardized image data value is greater than the threshold value; and numerating the growth degree of grains on the surface of the numerical target zone by calculating a ratio of the number of the counted pixels with respect to a number of total pixels disposed within the numerical target zone.