PATENT CLAIM ANALYSIS

Application Number: 15988677
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-12
Patent Classification: ["356", "509000"]

Abstract:
A metrology apparatus is disclosed that measures a structure formed on a substrate to determine a parameter of interest. The apparatus comprises an optical system configured to focus radiation onto the structure and direct radiation after reflection from the structure onto a detector, wherein: the optical system is configured such that the detector detects a radiation intensity resulting from interference between radiation from at least two different points in a pupil plane field distribution, wherein the interference is such that a component of the detected radiation intensity containing information about the parameter of interest is enhanced relative to one or more other components of the detected radiation intensity.

Claim (Index 27):
The apparatus of  claim 22 , configured so that the radiation beam input to the beam splitter comprises a pupil plane field distribution in which a first region of the pupil plane field distribution has been removed to leave only a second region of the pupil plane field distribution.

Metadata:
- Claim Count in Document: 38.0
- Percentile: 93.0
- Lexical Diversity: 1.73846
- Patent Class: 356.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15387431', '14970247', '15683126', '12805852', '15723820']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7624046594512773
- 35 USC 102 Novelty (BERT): 0.5050338073730435
- Combined Prediction Score: 0.736667574243454
- Mean Citation Score: 266.531982
- Max Citation Score: 271.62698
- Similarity Product: 190.0043905242157

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