PATENT CLAIM ANALYSIS

Application Number: 16113227
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-02
Patent Classification: ["355", "071000"]

Abstract:
An exposure apparatus is provided. An illumination optical system in the apparatus includes a diffraction optical element, a condensing optical system a detector that detects a light beam that exited from the condensing optical system, and a first diaphragm that can be inserted/removed in/from a position near a predetermined plane in an optical path where the condensing optical system condenses a light beam. The first diaphragm has an opening diameter such that an output of the detector decreases when an incident angle of light from a light source on the diffraction optical element deviates from a target angle. Based on an output of the detector when the first diaphragm is inserted in the position and an output of the detector when the first diaphragm is retracted from the position, a controller performs a process of adjusting the incident angle.

Claim (Index 12):
An adjusting method of adjusting an illumination optical system that includes a diffraction optical element provided in an optical path between a light source and an original, a condensing optical system configured to condense a light beam that exited from the diffraction optical element, and a detector configured to detect a light beam that exited from the condensing optical system, the method comprising:\n measuring a first output as an output of the detector by arranging a diaphragm set to an opening diameter where an output of the detector decreases when an incident angle of light from the light source on the diffraction optical element deviates from a target angle in the optical path near a predetermined plane where the light beam is condensed by the condensing optical system; and measuring a second output as an output of the detector by retracting the diaphragm from the optical path near the predetermined plane, wherein the incident angle is changed sequentially, the measuring the first output and the measuring the second output are repeated at each of the changed incident angles, and the incident angle is adjusted so as to set the incident angle to an angle at which a light amount ratio obtained as a ratio of the first output to the second output is maximized.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 96.0
- Lexical Diversity: 2.39344
- Patent Class: 355.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['10759604', '10860161', '10538230', '10759598', '13196535']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.656158663169112
- 35 USC 102 Novelty (BERT): 0.4650542203210577
- Combined Prediction Score: 0.6370482188843065
- Mean Citation Score: 180.727194
- Max Citation Score: 189.97806
- Similarity Product: 150.06655802957297

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