SAMPLE INSPECTION APPARATUS AND SAMPLE INSPECTION METHOD

Patent №

US 5,960,106

Granted

1999-09-28

Filed 1995

Owner

KABUSHIKI KAISHA TOSHIBA

Lab

AI components

1

vision

Assignment

Recorded

Dataset

AIPD

2023_r1 edition

Application

08413704

In a method of inspecting a sample on which a pattern relating to fabrication of a semiconductor device is formed, there are provided a light radiation unit, an acquiring unit, a storage unit, a template, a calculation unit, a correction unit, a defect detection unit and an output unit. Pinhole shape data to be detected of the pattern is stored in the template. The calculation unit calculates the degree of coincidence between the pinhole shape data stored in the template and the measured image data stored in the storage unit in units of a predetermined amount of data. The correction unit corrects a portion of the measured image data corresponding to a value of the degree of coincidence exceeding a second predetermined value in units of the predetermined amount of data, when the degree of coincidence obtained by the calculation unit has exceeded a first predetermined value, thereby correcting the portion of the measured image data including the detected pinhole. The defect detection unit detects a defect in the pattern on the basis of the corrected measured image data portion including the pinhole, which is obtained by the correcting unit, and the measured image data.

VisionG06T 7/0006G06T 2207/30148

AI classification

Vision1.00
Knowledge representation0.02
AI hardware0.00
Speech0.00
Machine learning0.00
Evolutionary computation0.00
Natural language0.00
Planning0.00

Ownership

KABUSHIKI KAISHA TOSHIBA

assignment · 75390715

Assignors

TSUCHIYA, HIDEO, TOJO, TORU, TABATA, MITSUO

On an employer assignment, the assignors are typically the inventors.

From the same owner

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