PATENT CLAIM ANALYSIS

Application Number: 15925325
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["356", "366000"]

Abstract:
A system for measuring overlay from a multi-layer overlay target for use in imaging based metrology is disclosed. The system is configured for measuring overlay from a multi-layer overly target that includes three or more target structures, wherein a first target structure is disposed in a first process layer, a second target structure is disposed in a second process layer, and at least a third target structure is disposed in at least a third process layer. The system includes an illumination source configured to illuminate the target structures of the multi-layer overlay target, a detector configured to collect light reflected from the target structures, and one or more processors configured to execute a set of program instructions to determine overlay error between two or more structures based on the collected light from the plurality of targets.

Claim (Index 19):
The system of  claim 15 , wherein one or more pattern elements of the first target structure overlaps with one or more pattern elements of at least one of the second target structure or the at least a third target structure.

Metadata:
- Claim Count in Document: 62.0
- Percentile: 90.0
- Lexical Diversity: 2.28571
- Patent Class: 356.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['13186144', '13783903', '13446133', '13964789', '12101439']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.764630398638754
- 35 USC 102 Novelty (BERT): 0.5455398074099622
- Combined Prediction Score: 0.7427213395158749
- Mean Citation Score: 283.869038
- Max Citation Score: 399.5543
- Similarity Product: 374.2217832496405

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