PATENT CLAIM ANALYSIS

Application Number: 16131450
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-04
Patent Classification: ["355", "067000"]

Abstract:
A method of and an apparatus for use in determining one or more alignment properties of an illumination beam of radiation emitted by a radiation source are provided. The illumination beam is for irradiating a target area on a substrate in a metrology apparatus. The method comprises: (a) obtaining a first set of intensity data; (b) obtaining a second set of intensity data; (c) processing said first and second sets of intensity data to determine said one or more alignment properties of said illumination beam of radiation; wherein said processing involves comparing said first and second sets of intensity data to calculate a value which is indicative of a translation of said illumination beam of radiation.

Claim (Index 19):
The method of  claim 16 , wherein the step of processing comprises:\n subtracting the second set of intensity data from the first set of intensity data to obtain a difference matrix; calculating a gradient of intensity of the first set of intensity data to obtain a first gradient matrix; performing elementwise multiplication of the difference matrix and the first gradient matrix to obtain a first signal matrix; and summing elements of the first signal matrix to obtain a first signal value indicative of a translation of the projection of the second beam along a first axis to a first coordinate in a plane of the first or second pixelated sensor.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 97.0
- Lexical Diversity: 2.18644
- Patent Class: 355.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15988681', '14794013', '14838268', '15875156', '15079860']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7422371156379541
- 35 USC 102 Novelty (BERT): 0.4763201507201167
- Combined Prediction Score: 0.7156454191461704
- Mean Citation Score: 231.89057000000005
- Max Citation Score: 235.56758
- Similarity Product: 189.2152673085856

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