PATENT CLAIM ANALYSIS

Application Number: 15869661
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["356", "620000"]

Abstract:
Disclosed are a method, computer program and associated apparatuses for measuring a parameter of a lithographic process. The method comprising the steps of: obtaining first measurements comprising measurements of structural asymmetry relating to a plurality of first structures, each of said plurality of measurements of structural asymmetry corresponding to a different measurement combination of measurement radiation and a value for at least a first parameter; obtaining a plurality of second measurements of target asymmetry relating to a plurality of targets, each of said plurality of measurements of target asymmetry corresponding to one of said different measurement combinations, determining a relationship function describing the relationship between said first measurements and said second measurements, for each of said measurement combinations; determining, from said relationship function, a corrected overlay value, said corrected overlay value being corrected for structural contribution due to structural asymmetry in at least said first structure.

Claim (Index 6):
The method according to  claim 3 , wherein the measuring of the first structures is performed prior to formation of the second structure.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 86.0
- Lexical Diversity: 2.65
- Patent Class: 356.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15133866', '15013340', '15474803', '15038535', '15279860']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7745923946043869
- 35 USC 102 Novelty (BERT): 0.5461836927113817
- Combined Prediction Score: 0.7517515244150864
- Mean Citation Score: 376.90062
- Max Citation Score: 458.8138
- Similarity Product: 258.87354088902475

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