PATENT CLAIM ANALYSIS

Application Number: 15873880
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-08
Patent Classification: ["716", "051000"]

Abstract:
A metrology method, and associated metrology apparatus, that includes measuring a target formed in at least two layers on a substrate by a lithographic process and capturing at least one corresponding pair of non-zeroth diffraction orders, for example in an image field, to obtain measurement data. A simulation of a measurement of the target as defined in terms of geometric parameters of the target, the geometric parameters including one or more variable geometric parameters is performed and a difference between the measurement data and simulation data is minimized, so as to directly reconstruct values for the one or more variable geometric parameters.

Claim (Index 16):
The method as claimed in  claim 14 , wherein the first stage is used to predict a stack height variation map which describes the variation of the layer height across the substrate, the stack height variation map being used to determine the fixed layer height parameter in the second stage.

Metadata:
- Claim Count in Document: 10.0
- Percentile: 86.0
- Lexical Diversity: 1.80328
- Patent Class: 716.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15477602', '14948001', '15706625', '15013340', '14794013']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3837422499430516
- 35 USC 102 Novelty (BERT): 0.4802832787001883
- Combined Prediction Score: 0.3933963528187653
- Mean Citation Score: 237.664402
- Max Citation Score: 241.59851
- Similarity Product: 173.68040832239987

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

Dataset: test