Patent ID: 6766215
Filing Date: 2004-07-20
Classification: G01N,H01L

Abstract:
A system, comprising:a computer system; a manufacturing model coupled with said computer system, said manufacturing model being capable of generating and modifying at least one control input parameter signal; a machine interface coupled with said manufacturing model, said machine interface being capable of receiving process recipes from said manufacturing model; a processing tool capable of processing semiconductor wafers and being operatively coupled to said machine interface, said processing tool being capable of receiving at least one control input parameter signal from said machine interface; a metrology tool coupled with said processing tool, said metrology tool being capable of acquiring metrology data; a scatterometry reference library, said scatterometry reference library comprising optical data related to a plurality of poly-silicon structures; and a scatterometry data error analysis unit coupled to said metrology tool and said scatterometry reference library, said scatterometry data error analysis unit capable of comparing said metrology data from the metrology tool, to corresponding data in said scatterometry reference library, and calculating at least one of a necking error and a poly-silicon structure break error in response to said comparison.