2006
DOI: 10.1109/tsm.2006.883594
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A Classification-Based Fault Detection and Isolation Scheme for the Ion Implanter

Abstract: We propose a classification-based fault detection and isolation scheme for the ion implanter. The proposed scheme consists of two parts: 1) the classification part and 2) the fault detection and isolation part. In the classification part, we propose a hybrid classification tree (HCT) with learning capability to classify the recipe of a working wafer in the ion implanter, and a k-fold cross-validation error is treated as the accuracy of the classification result. In the fault detection and isolation part, we pr… Show more

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Cited by 16 publications
(7 citation statements)
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“…Ion Implantation is used to modify the electrical properties of wafers by injecting doping atoms. It is often considered a 'bottleneck' in production lines due to the high cost of the tool, making it a critical operation for throughput [11].…”
Section: A Use Casementioning
confidence: 99%
“…Ion Implantation is used to modify the electrical properties of wafers by injecting doping atoms. It is often considered a 'bottleneck' in production lines due to the high cost of the tool, making it a critical operation for throughput [11].…”
Section: A Use Casementioning
confidence: 99%
“…Regarding other machines, Lin and Horng [111] use a scheme of classification and detection of faults in an ion implanter, proposing a hybrid classification tree, i.e., they combine a grouping algorithm with CART. They indicate that their methodology is general and can be applied to other machines by simply modifying the warning generation criteria.…”
Section: Hybrid Techniquesmentioning
confidence: 99%
“…During the process, the filament is heated and electrons are 'boiled' off the heated filament; the electrons are then accelerated in the beamline area and then impinge on the wafers in the End Station area. Ion Implantation is used to modify the electrical properties of the wafers by injecting doping atoms and it is consider a 'bottleneck' in the production line due to the high cost of the tool, making it a critical operation for throughput [10].…”
Section: Use Case and Data Descriptionmentioning
confidence: 99%