PATENT CLAIM ANALYSIS

Application Number: 16217424
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-06
Patent Classification: ["355", "067000"]

Abstract:
According to one embodiment, a prism system is provided. The prism system includes a polarizing beam splitter (PBS) surface. The PBS surface is configured to generate first and second sub-beams having corresponding first and second polarization information from a received beam, the second polarization information being different than the first polarization information. A first optical path of the first sub-beam within the prism system has substantially same length as a second optical path of the second sub-beam within the prism system. Additionally or alternatively, the first sub-beam achieves a predetermined polarization extinction ratio.

Claim (Index 9):
A lithographic apparatus comprising:\n a first illumination optical system configured to illuminate a pattern; a projection optical system configured to project an image of the pattern onto a substrate; and a scatterometer configured to determine a parameter of the lithographic apparatus, the scatterometer comprising:\n a second illumination optical system configured to deliver at least one beam of radiation; \n an objective optical system configured to focus the at least one beam of radiation onto the substrate; \n a detector configured to detect a reflected radiation beam from the substrate; and \n an apparatus, comprising:\n a prism system comprising a polarizing beam splitter (PBS) surface, \n wherein the PBS surface is configured generate first sub-beam and second sub-beams having corresponding first and second polarization information from received the at least one beam of radiation or the reflected radiation beam, the second polarization information being different than the first polarization information, and \n wherein a first optical path of the first sub-beam within the prism system has substantially same length as a second optical path of the second sub-beam within the prism system, or \n the first sub-beam achieves a predetermined polarization extinction ratio.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 98.0
- Lexical Diversity: 1.90741
- Patent Class: 355.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['11708678', '12922587', '12718599', '12920968', '14970247']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7236908859380937
- 35 USC 102 Novelty (BERT): 0.4865920022909709
- Combined Prediction Score: 0.6999809975733815
- Mean Citation Score: 273.340106
- Max Citation Score: 291.01602
- Similarity Product: 253.01778234934693

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