PATENT CLAIM ANALYSIS

Application Number: 15923858
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-07
Patent Classification: ["355", "071000"]

Abstract:
There is provided a reflective image-forming optical system which is applicable to an exposure apparatus using, for example, EUV light and which is capable of increasing numerical aperture while enabling optical path separation of light fluxes. In a reflective imaging optical system ( 6 ) forming an image of a first plane ( 4 ) onto a second plane ( 7 ), the numerical aperture on a side of the second plane with respect to a first direction (X direction) on the second plane is greater than 1.1 times a numerical aperture on the side of the second plane with respect to a second direction (Y direction) crossing the first direction on the second plane. The reflecting imaging optical system has an aperture stop (AS) defining the numerical aperture on the side of the second plane, and the aperture stop has an elliptic-shaped opening of which size in a major axis direction (X direction) is greater than 1.1 times that in a minor axis direction (Y direction).

Claim (Index 44):
A device manufacturing method, comprising:\n exposing a substrate by using the exposure apparatus as defined in  claim 35 ; and processing the exposed substrate.

Metadata:
- Claim Count in Document: 65.0
- Percentile: 90.0
- Lexical Diversity: 2.55556
- Patent Class: 355.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15396629', '13511797', '12170933', '11281785', '15623749']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7579625465338782
- 35 USC 102 Novelty (BERT): 0.5970379452907452
- Combined Prediction Score: 0.7418700864095649
- Mean Citation Score: 429.37590400000016
- Max Citation Score: 562.6265
- Similarity Product: 430.2653651114404

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test