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 9):
The defect inspection apparatus according to  claim 8 , wherein the inspection object is a laminated semiconductor wafer formed by laminating a plurality of wafers having the multiple types of patterns formed thereon, wherein the image acquisition unit comprises an ultrasonic probe and an ultrasonic image generation unit, and wherein the obtaining the image of the inspection object using the image acquisition unit is performed by sending an ultrasonic wave to the inspection object while scanning a plane parallel to a surface of the inspection object with the ultrasonic probe, receiving a reflected echo wave returned from the inspection object to which the ultrasonic wave was sent using the ultrasonic probe, and generating a sectional image of the plane parallel to the surface in the inspection object from the received reflected echo wave using the ultrasonic image generation unit.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 99.0
- Lexical Diversity: 2.0303
- Patent Class: 382.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15287418', '11587482', '13017641', '11058616', '13705618']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3567940287851425
- 35 USC 102 Novelty (BERT): 0.5658135504820356
- Combined Prediction Score: 0.3776959809548318
- Mean Citation Score: 268.709872
- Max Citation Score: 459.32925
- Similarity Product: 358.3838230733425

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