Patent ID: 6249900
Filing Date: 2001-06-19
Classification: G03F

Abstract:
A pattern design method comprising:the step of dividing a design pattern a part of which is a bent portion in the bent portion, using a length B and a line width W of a unit figure obtained by the division as parameters, determining a line width C at which a desired line width W is obtained in a finished pattern for the length B of said unit figure to be a correction value, and tabulating these relationships;the step of determining an upper limit Bmax of the length of a line segment to be corrected according to said tabulated relationship of the parameters for said design pattern having the bent portion;the step of extracting a shorter one than said upper limit Bmax of the line segments of said design pattern having the bent portion;the step of extracting a unit figure including said extracted line segment; andthe step of correcting the line width W of said extracted unit figure to the line width C by reference to said tabulated relationships.