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 15):
The lithographic apparatus of  claim 14 , wherein the optical modulator comprises:\n a polarization splitter configured to split the light into first polarized light having a first polarization mode and second polarized light having a second polarization mode; an optical delay element configured to change a group delay of the first polarized light; and an optical coupler configured to combine the first delayed polarized light and the second polarized light, such that the first polarization mode and the second polarization mode are temporally separated in the combined light.

Metadata:
- Claim Count in Document: 39.0
- Percentile: 91.0
- Lexical Diversity: 2.33333
- Patent Class: 355.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['14805402', '15023075', '15694398', '15328194', '13000229']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7023184314677252
- 35 USC 102 Novelty (BERT): 0.4929609683819777
- Combined Prediction Score: 0.6813826851591505
- Mean Citation Score: 258.341336
- Max Citation Score: 267.12955
- Similarity Product: 211.3572737906217

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