LIME을 활용한 준지도 학습 기반 이상 탐지 모델: 반도체 공정을 중심으로

• 영문명: Anomaly Detection Model Based on Semi-Supervised Learning Using LIME: Focusing on Semiconductor Process
• 발행기관: 한국산업경영시스템학회
• 저자명: 안강민 신주은 백동현
• 간행물 정보: 『산업경영시스템학회지』제45권 제4호, 86~98쪽, 전체 13쪽
• 주제분류: 공학 > 산업공학
• 파일형태: PDF
• 발행일자: 2022.12.31

영문 초록

Recently, many studies have been conducted to improve quality by applying machine learning models to semiconductor manu- facturing process data. However, in the semiconductor manufacturing process, the ratio of good products is much higher than that of defective products, so the problem of data imbalance is serious in terms of machine learning. In addition, since the number of features of data used in machine learning is very large, it is very important to perform machine learning by extracting only important features from among them to increase accuracy and utilization. This study proposes an anomaly detection method- ology that can learn excellently despite data imbalance and high-dimensional characteristics of semiconductor process data. The anomaly detection methodology applies the LIME algorithm after applying the SMOTE method and the RFECV method. The proposed methodology analyzes the classification result of the anomaly classification model, detects the cause of the anomaly, and derives a semiconductor process requiring action. The proposed methodology confirmed applicability and feasibility through application of cases.

목차

1. 서 론

2. 이론적 배경

3. 이상 탐지 방법론

4. 사례적용

5. 결 론

키워드

Semiconductor Fabrication Process SMOTE RFECV Anomaly Detection LIME