Patent ID: 7269470
Filing Date: 2007-09-11
Classification: G03F

Abstract:
1. An evaluation system, comprising: an error calculation module configured to calculate error information on mutual optical system errors among a plurality of aligners; a simulation module configured to simulate device patterns to be delineated by each of the aligners based on the error information; an evaluation module configured to evaluate whether each of the aligners has appropriate performances, which are determined by design specifications required by a product, for organizing a product development machine group based on the simulated device pattern; a virtual dangerous pattern extraction module configured to extract a pattern, which is defined by standard values required by design guidelines of the product, as a virtual dangerous pattern for each of the aligners, which are evaluated to have the appropriate performances, among the simulated device patterns; and a confirmation module configured to compare a shape of the virtual dangerous pattern with a shape of an actual dangerous pattern actually delineated by exposing the virtual dangerous pattern on an exposed object, for each of the aligners, which are evaluated to have the appropriate performances, so as to determine whether the aligners may be used in the product development machine group.