Abstract: A method and system are presented for use in controlling a multiple patterning process of n patterning stages subsequently applied to a sample to produce a target pattern thereon. The method comprises: providing intermediate measured data indicative of an optical response of the sample after being patterned by m-th patterning stage, 1?m<n; processing said intermediate measured data, determining at least a location parameter of a predetermined feature of the pattern, and generating measured data indicative of said at least one selected parameter; utilizing said at least location parameter of the predetermined feature for optimizing a data interpretation model for interpretation of measured data indicative of an optical response from the sample being patterned by k-th subsequent patterning stage, m<k?n.

Abstract: A method and system are presented for use in controlling a process applied to a patterned structure having regions of different layered stacks. The method comprises: sequentially receiving measured data indicative of optical response of the structure being processed during a predetermined processing time, and generating a corresponding sequence of data pieces measured over time; and analyzing and processing the sequence of the data pieces and determining at least one main parameter of the structure.

Abstract: A monitoring system and method are provided for determining at least one property of an integrated circuit (IC) comprising a multi-layer structure formed by at least a layer on top of an underlayer. The monitoring system receives measured data comprising data indicative of optical measurements performed on the IC, data indicative of x-ray photoelectron spectroscopy (XPS) measurements performed on the IC and data indicative of x-ray fluorescence spectroscopy (XRF) measurements performed on the IC. An optical data analyzer module analyzes the data indicative of the optical measurements and generates geometrical data indicative of one or more geometrical parameters of the multi-layer structure formed by at least the layer on top of the underlayer.

Abstract: A method and system are presented for use in controlling a process applied to a patterned structure having regions of different layered stacks. The method comprises: sequentially receiving measured data indicative of optical response of the structure being processed during a predetermined processing time, and generating a corresponding sequence of data pieces measured over time; and analyzing and processing the sequence of the data pieces and determining at least one main parameter of the structure.

Abstract: A method and system are presented for use in controlling a process applied to a patterned structure having regions of different layered stacks. The method comprises: sequentially receiving measured data indicative of optical response of the structure being processed during a predetermined processing time, and generating a corresponding sequence of data pieces measured over time; and analyzing and processing the sequence of the data pieces and determining at least one main parameter of the structure.

Abstract: A measurement method and system are presented for in-line measurements of one or more parameters of thin films in structures progressing on a production line. First measured data and second measured data are provided from multiple measurements sites on the thin film being measured, wherein the first measured data corresponds to first type measurements from a first selected set of a relatively small number of the measurement sites, and the second measured data corresponds to second type optical measurements from a second set of significantly higher number of the measurements sites. The first measured data is processed for determining at least one value of at least one parameter of the thin film in each of the measurement sites of said first set. Such at least one parameter value is utilized for interpreting the second measured data, thereby obtaining data indicative of distribution of values of said at least one parameter within said second set of measurement sites.

Abstract: A method and system are presented for use in controlling a process applied to a patterned structure having regions of different layered stacks. The method comprises: sequentially receiving measured data indicative of optical response of the structure being processed during a predetermined processing time, and generating a corresponding sequence of data pieces measured over time; and analyzing and processing the sequence of the data pieces and determining at least one main parameter of the structure.

Abstract: A control system is presented for use in measuring one or more parameters of a sample. The control system comprises an input utility and a processor utility. The input utility is configured for receiving input data including first data comprising X-ray Diffraction or High-Resolution X-ray Diffraction (XRD) response data of the sample indicative of a material distribution in the sample, and second data comprising optical response data of the sample to incident light indicative of at least a geometry of the sample. The processor utility is configured and operable for processing and analyzing one of the first and second data for optimizing the other one of the first and second data, and utilizing the optimized data for determining said one or more parameters of the sample including a strain distribution in the sample.

Abstract: A method and system are presented for use in model-based optical measurements in patterned structures. The method comprises: selecting an optimal optical model for interpretation of optical measured data indicative of optical response of the structure under measurements. The selection of the optimal optical model comprises: creating a complete optical model with floating parameters defining multiple configurations of said complete model including one or more model configurations describing an optical response of the structure under measurements, utilizing the complete model for predicting a reference optical response from the structure and generating corresponding virtual reference data, and using the virtual reference data for selecting the optimal optical model for interpretation of the optical measured data.

Abstract: A method and system are presented for use in measuring on patterned samples, aimed at determining asymmetry in the pattern. A set of at least first and second measurements on a patterned region of a sample is performed, where each of the measurements comprises: directing illuminating light onto the patterned region along an illumination channel and collecting light reflected from the illuminated region propagating along a collection channel to be detected, such that detected light from the same patterned region has different polarization states which are different from polarization of the illuminating light, and generating a measured data piece indicative of the light detected in the measurement. Thus, at least first and second measured data pieces are generated for the at least first and second measurements on the same patterned region. The at least first and second measured data pieces are analyzed and output data is generated being indicative of a condition of asymmetry in the patterned region.

Abstract: A method and system are presented for use in controlling a process applied to a patterned structure having regions of different layered stacks. The method comprises: sequentially receiving measured data indicative of optical response of the structure being processed during a predetermined processing time, and generating a corresponding sequence of data pieces measured over time; and analyzing and processing the sequence of the data pieces and determining at least one main parameter of the structure.