Method for measuring dimensions of fine pattern
First Claim
1. A method for measuring dimensions of a fine pattern, comprising:
- calculating a surface area and determining a profile of a displayed pattern image;
calculating a center of gravity in the pattern image;
calculating an equivalent diameter of a circular pattern having the same surface area as the pattern image;
calculating a mathematical mean value of pattern lengths of lines which all pass through the center of gravity of the pattern image and which intersect the pattern image at two points of the profile, said pattern lengths being defined as distances between the two points; and
comparing the means value with the equivalent diameter of the circular pattern image.
1 Assignment
0 Petitions
Accused Products
Abstract
A method for measuring the dimensions of a fine pattern, comprises first measuring a surface area and determining a profile of a displayed pattern image, second, calculating the center of gravity of the pattern image, third, calculating an equivalent diameter of a circular pattern having the same surface area as the pattern image, fourth, calculating a mean value of pattern lengths of lines which all pass through the center of gravity of the pattern image and which intersect the pattern image at two intersecting points; and fifth, comparing the mean value with the equivalent diameter of the circular pattern image. The pattern lengths are defined as distances between the two intersecting points.
-
Citations
4 Claims
-
1. A method for measuring dimensions of a fine pattern, comprising:
-
calculating a surface area and determining a profile of a displayed pattern image; calculating a center of gravity in the pattern image; calculating an equivalent diameter of a circular pattern having the same surface area as the pattern image; calculating a mathematical mean value of pattern lengths of lines which all pass through the center of gravity of the pattern image and which intersect the pattern image at two points of the profile, said pattern lengths being defined as distances between the two points; and comparing the means value with the equivalent diameter of the circular pattern image. - View Dependent Claims (2, 3, 4)
-
Specification