PATENT CLAIM ANALYSIS

Application Number: 16085000
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-03
Patent Classification: ["356", "400000"]

Abstract:
A method of determining positions of marks, the marks comprising periodic structures, at least some of the structures comprising periodic sub-structures, the sub-structures having a smaller period than the structures, the marks formed with positional offsets between the sub-structures and structures, the positional offsets caused by a combination of both known and unknown components, the method comprising illuminating a plurality of the marks with radiation having different characteristics, detecting radiation diffracted by the marks using one or more detectors which produce output signals, discriminating between constituent parts of the signals, the discriminating based on a variation of the signals as a function of spatial positions of the marks on a substrate, selecting at least one of the constituent parts of the signals, and using the at least one selected constituent part, and information relating to differences between the known components, to calculate a corrected position of at least one mark.

Claim (Index 15):
A non-transitory computer program product comprising machine-readable instructions configured to cause a processing device to at least:\n obtain signals from one or more detectors, which signals correspond to detection of radiation, diffracted by marks on a substrate, having different characteristics, the marks comprising structures arranged periodically, at least some of the structures comprising periodic sub-structures, the sub-structures having a smaller period than the structures, and the marks formed with positional offsets between the sub-structures and the structures, the positional offsets caused by a combination of both known and unknown components; process the signals, wherein processing of the signals comprises discriminating between constituent parts of the signals, the discriminating based on a variation of the signals as a function of spatial positions of the marks on the substrate; select at least one of the constituent parts of the signals; and use the at least one selected constituent part, and information relating to a difference between the known components, to calculate a corrected position of at least one mark, wherein the at least one selected constituent part used in the calculation comprises a part of the signals which has a higher spatial frequency variation than a constituent part of the signals that is not selected.

Metadata:
- Claim Count in Document: 12.0
- Percentile: 97.0
- Lexical Diversity: 2.30986
- Patent Class: 356.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14764939', '15777162', '16315100', '14427942', '15032507']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7148637466068368
- 35 USC 102 Novelty (BERT): 0.5163895802557412
- Combined Prediction Score: 0.6950163299717274
- Mean Citation Score: 258.93029
- Max Citation Score: 332.5265
- Similarity Product: 278.22722907331587

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test