PATENT CLAIM ANALYSIS

Application Number: 15902157
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-10
Patent Classification: ["250", "307000"]

Abstract:
A multi charged particle beam inspection apparatus includes a plurality of sensors, arranged inside or on a periphery of a secondary electron image acquisition mechanism, to measure a plurality of interfering factors, a determination circuit to determine, for each interfering factor, whether change exceeding a corresponding threshold is a first case which returns to the original state within a predetermined time period, or a second case which does not return to the original state even if the predetermined time period has passed, and a comparison circuit to input a reference image of a region corresponding to the secondary electron image acquired, and compare the secondary electron image with the reference image, wherein in the case where change of the second case occurs, the secondary electron image acquisition mechanism suspends the acquisition operation of the secondary electron image, and calibrates a change amount of the multiple charged particle beams.

Claim (Index 11):
A multi charged particle beam inspection method comprising:\n performing an acquisition operation of a secondary electron image which includes a reflected electron emitted from a substrate due to irradiation with multiple charged particle beams on the substrate; measuring a plurality of interfering factors inside or on a periphery of a secondary electron image acquisition mechanism; determining, for each of the plurality of interfering factors, in a case where change exceeding a corresponding threshold occurs in at least one of the plurality of interfering factors, whether the change is a first case which returns to an original state within a predetermined time period, or a second case which does not return to the original state even if the predetermined time period has passed; suspending the acquisition operation of the secondary electron image in a case where change of the second case occurs, and calibrating a change amount of the multiple charged particle beams; and inputting a reference image of a region corresponding to the secondary electron image acquired, and comparing the secondary electron image with the reference image, wherein the acquisition operation of the secondary electron image is restarted after the calibrating.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 88.0
- Lexical Diversity: 2.07792
- Patent Class: 250.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15497425', '15596406', '15274413', '15652994', '15623416']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7188133049602775
- 35 USC 102 Novelty (BERT): 0.4733633976435862
- Combined Prediction Score: 0.6942683142286084
- Mean Citation Score: 224.140892
- Max Citation Score: 226.46216
- Similarity Product: 194.55255821515084

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