Patent ID: 8019457
Filing Date: 2011-09-13
Classification: H01L

Abstract:
1. A method of controlling a result parameter of an integrated circuit (IC) manufacturing procedure, wherein the IC manufacturing procedure includes a number “N” of processes correlated with the result parameter, an i-th process includes at least one i-th variable correlated with the result parameter in a correlation equation and having a standard value V i−0 , the variables include two or more different physical quantities and the result parameter has a target value P 0 when each variable has its standard value, comprising: setting j=k (1≦k≦N−1) and setting a predicted accumulative deviation ΔP a) acquiring a value V b) calculate a difference ΔV c) calculating a predicted variation ΔP d) calculating, from ΔP e) increasing the value of j by one; and repeating the steps a-e for at least one cycle if k is not equal to N−1, and making an end when j is equal to N.