PATENT CLAIM ANALYSIS

Application Number: 15766427
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["355", "067000"]

Abstract:
A metrology system includes a radiation source that generates light, an optical modulation unit, a reflector, an interferometer, and a detector. The optical modulating unit temporally separates a first polarization mode of the light from a second polarization mode of the light. The reflector directs the light towards a substrate. The interferometer interferes the diffracted light from a pattern on the substrate, or reflected light from the substrate, and produces output light from the interference. The detector receives the output light from the interferometer. The first and second polarization modes of the output light are temporally separated at the detector.

Claim (Index 12):
A metrology system, comprising:\n a radiation source configured to generate light; a reflector configured to direct the light towards a substrate; an optical modulator comprising:\n a polarization splitter configured to split light diffracted from a pattern on the substrate, or reflected from the substrate, into first polarized light having a first polarization mode and second polarized light having a second polarization mode, \n an optical rotator configured to receive the first polarized light and rotate the polarization of the first polarized light, and \n an optical coupler configured to combine the first rotated polarized light and the second polarized light to form combined light, such that the first polarization mode and the second polarization mode are spatially separated in a pupil plane; \n an interferometer configured to receive the combined light, and to produce output light from interference of the combined light; and one or more detectors configured to receive the output light from the interferometer, wherein the first polarization mode and the second polarization mode of the output light are spatially separated at the one or more detectors.

Metadata:
- Claim Count in Document: 39.0
- Percentile: 91.0
- Lexical Diversity: 2.33333
- Patent Class: 355.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14805402', '15023075', '15694398', '15328194', '13000229']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6776618042358176
- 35 USC 102 Novelty (BERT): 0.486291071758053
- Combined Prediction Score: 0.6585247309880411
- Mean Citation Score: 258.341336
- Max Citation Score: 267.12955
- Similarity Product: 225.7135866338729

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