Patent ID: 7783101
Filing Date: 2010-08-24
Classification: G06T

Abstract:
1. A method for generating dimensions of a structure having a re-entrant profile, comprising: imaging at least a portion of a top surface of said structure to determine a top critical dimension, TCD, of said structure at a hardware imager of a hardware imaging system; imaging a second portion of said structure from a first plurality of imaging perspectives to generate a left sidewall dimension, LW, and an angle, α, associated with a left re-entrant angle, 90°+α, of said structure at said hardware imager of said hardware imaging system; imaging a third portion of said structure from a second plurality of imaging perspectives to generate a right sidewall dimension, RW, and an angle, β, associated with a right re-entrant angle, 90°+β, of said structure at said hardware imager of said hardware imaging system; and generating a bottom critical dimension, BCD, of said structure based on generating said top critical dimension, TCD, said left sidewall dimension, LW, said angle, α, said right sidewall dimension, RW, and said angle, β at a hardware dimension determiner of a hardware dimension determining system.