PATENT CLAIM ANALYSIS

Application Number: 15968743
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["355", "055000"]

Abstract:
A method and apparatus for obtaining focus information relating to a lithographic process. The method includes illuminating a target, the target having alternating first and second structures, wherein the form of the second structures is focus dependent, while the form of the first structures does not have the same focus dependence as that of the second structures, and detecting radiation redirected by the target to obtain for that target an asymmetry measurement representing an overall asymmetry of the target, wherein the asymmetry measurement is indicative of focus of the beam forming the target. An associated mask for forming such a target, and a substrate having such a target.

Claim (Index 85):
A patterning device comprising a first pattern for patterning a beam to form a first target comprising alternating first and second structures, wherein the patterning device comprises:\n first structure features to form the first structures; and second structure features to form the second structures, the second structure features comprising a low resolution substructure feature to form low resolution substructures and a high resolution substructure feature to form high resolution substructures, the high resolution substructures comprising a plurality of elongate high resolution substructures arranged essentially parallel to the low resolution substructures, wherein the second structure features are configured such that the form of the second structures is focus dependent such that its form depends upon the focus of the patterned beam when forming the first target and the first structure features are configured such that the form of the first structures does not have the same focus dependence as that of the second structures.

Metadata:
- Claim Count in Document: 14.0
- Percentile: 93.0
- Lexical Diversity: 2.08929
- Patent Class: 355.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15104212', '15358321', '13140292', '15179509', '15429952']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7134388256680828
- 35 USC 102 Novelty (BERT): 0.5441286222902056
- Combined Prediction Score: 0.6965078053302951
- Mean Citation Score: 301.96685
- Max Citation Score: 427.6808
- Similarity Product: 396.0498567574501

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