PATENT CLAIM ANALYSIS

Application Number: 16289404
Application Type: Utility
Filing Date: 2019-02
Publication Date: 2019-06
Patent Classification: ["382", "144000"]

Abstract:
In an ultrasonic inspection performed on an inspection object including a fine and multi-layer structure such as a semiconductor wafer and a MEMS wafer, a defect is detected by: separating a defect present inside from a normal pattern; obtaining an image of the inspection object by imaging the inspection object having a pattern formed thereon to enable a highly sensitive detection; generating a reference image that does not include a defect from the obtained image of the inspection object; generating a multi-value mask for masking a non-defective pixel from the obtained image of the inspection object; calculating a defect accuracy by matching the brightness of the image of the inspection object and the reference image; and comparing the calculated defect accuracy with the generated multi-value mask.

Claim (Index 13):
An ultrasonic inspection apparatus comprising:\n a detection unit comprising an ultrasonic probe emitting an ultrasonic wave and a flaw detector detecting a reflected echo generated from an inspection object by the ultrasonic wave emitted from the ultrasonic probe; an A/D conversion unit A/D converting a signal output from the flaw detector having detected the reflected echo in the detection unit; and an image processing unit processing a signal output from the flaw detector which has detected the reflected echo and converted into a digital signal by the A/D conversion unit, generating a sectional image in a plane parallel to a surface of the inspection object inside the inspection object, processing the generated internal sectional image, and thereby inspecting an internal defect of the inspection object, wherein the image processing unit comprises: a sectional image generation unit detecting the reflected echo generated from the flaw detector, processing the output signal, and generating the sectional image of the inside of the inspection object; a reference image generation unit generating a reference image that does not include a defect from the sectional image of the inside of the inspection object generated by the sectional image generation unit and generating a multi-value mask for masking a non-defective pixel from the obtained internal image of the inspection object; a feature amount computing unit calculating a defect accuracy by matching the brightness of the internal sectional image of the inspection object generated by the sectional image generation unit and the reference image generated by the reference image generation unit; a defect detection processing unit detecting the defect by comparing the defect accuracy calculated by the feature amount computing unit with the multi-value mask generated by the reference image generation unit; and an output unit outputting the internal defect detected by the defect detection processing unit.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 99.0
- Lexical Diversity: 2.0303
- Patent Class: 382.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15287418', '11587482', '13017641', '11058616', '13705618']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3292815141648511
- 35 USC 102 Novelty (BERT): 0.565255371796026
- Combined Prediction Score: 0.3528788999279686
- Mean Citation Score: 268.709872
- Max Citation Score: 459.32925
- Similarity Product: 370.0842616679817

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