Patent ID: 6185472
Filing Date: 2001-02-06
Classification: G06F,H01L

Abstract:
A method of manufacturing a semiconductor device comprising the steps of:collecting at least one of actually observed data by measuring at least one of plural characteristics concerning at least one of a film formed in a manufacturing apparatus, a film formed on a semiconductor substrate, surface of said semiconductor substrite, and interior of said semiconductor substrate during at least one of a plurality of steps;obtaining at least one of prediction data of said plural characteristics by selecting at least one of set values for plural manufacturing process factors and fluctuation of this set value during said at least one of a plurality of steps as input values and then executing variation calculation based on said input values by using an ab initio molecular dynamics process simulator or a molecular dynamics simulator to which empirical potential is given;comparing and verifying said prediction data and said actually observed data sequentially at real time; andcorrecting and processing said plural manufacturing process factors sequentially at real time if difference in significance is recognized between at least one of said set values for said plural manufacturing process factors and at least one of said plural manufacturing process factors estimated from said actually observed data according to comparison and verification;wherein said ab initio molecular dynamics process simulator or said molecular dynamics simulator to which empirical potential is given has functions of setting time to zero when motions of atoms constituting semiconductor material, insulating material, or conductive material being formed or processed during said plurality of steps reach equilibrium, then setting a time period from zero to time t as a sampling time, then calculating time correlation between polarizability, charge, and position vector, and then calculating optical spectrum within a predetermined time, andprediction data which are derived by said ab initio molecular dynamics process simulator or said molecular dynamics simulator to which empirical potential is given include information concerning oscillation behavior derived from momentary motion of individual atoms, natural frequency of oscillation, and distribution of said natural frequency.