PATENT CLAIM ANALYSIS

Application Number: 16169514
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-05
Patent Classification: ["356", "625000"]

Abstract:
Metrology apparatus and methods are disclosed for measuring a structure formed on a substrate. In one arrangement, different components of a radiation beam are selectively extracted after reflection from the structure and independently detected. For each component, radiation is selected from one of a plurality of predetermined regions in a downstream pupil plane of the optical system downstream from the structure. Radiation is further selected from one of two predetermined orthogonal polarization states. The predetermined orthogonal polarization states are oriented differently as a pair for each of at least a subset of components comprising radiation selected from different predetermined regions in the downstream pupil plane.

Claim (Index 16):
A metrology apparatus for measuring a structure formed on a substrate, comprising:\n an optical system configured to focus radiation onto the structure and direct radiation after reflection from the structure onto a detection system; and a beam processing device configured to selectively extract a plurality of different components of the radiation beam after reflection from the structure, and to direct each of the extracted components to the detection system such that each component can be detected independently of each other component, wherein: the selective extraction comprises, for each component: selecting radiation from one of a plurality of predetermined regions in a downstream pupil plane of the optical system downstream from the structure, the selected predetermined region being different for each of at least a subset of the components; and selecting radiation from one of two predetermined orthogonal polarization states, the predetermined orthogonal polarization states being oriented differently as a pair for each of the at least a subset of the components comprising radiation selected from different predetermined regions in the downstream pupil plane.

Metadata:
- Claim Count in Document: 44.0
- Percentile: 97.0
- Lexical Diversity: 1.86667
- Patent Class: 356.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16116437', '15445536', '15445478', '15445522', '16159080']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6891568950553761
- 35 USC 102 Novelty (BERT): 0.5165148976537212
- Combined Prediction Score: 0.6718926953152107
- Mean Citation Score: 281.24498600000004
- Max Citation Score: 319.95334
- Similarity Product: 280.8533597242642

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