Przegląd Wykorzystania Aoi W Procesie Kontroli Montażu Powierzchniowego

Michalska, Magdalena

doi:10.35784/iapgos.2379

Cited by 2 publications

(1 citation statement)

References 26 publications

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“…Thus, IC solder joint inspection is a highly important issue in the SMT manufacturing process. As automatic optical inspection (AOI) has the advantages of noncontact, nondestructiveness, high reliability, high efficiency and good repeatability, it has been successfully used to inspect IC solder joints (Michalska, 2020; Jiang et al , 2002). However, IC solder joint inspection is still a challenging problem because of their small sizes and high similarities (Ye et al , 2018).…”

Section: Introductionmentioning

confidence: 99%

IC solder joint inspection via adaptive statistical modeling

Xiao

Cai

et al. 2022

SSMT

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Purpose Statistical modeling has been successfully applied to integrated circuit (IC) solder joint inspection. However, there are some inherent problems in previous statistical modeling methods. This paper aims to propose an adaptive statistical modeling method to further improve the inspection performance for IC solder joints. Design/methodology/approach First, different pixels in the IC solder joint image were modeled by different templates, each of which was composed of the hue value of the pixel and a proposed template significance factor. Then, the potential defect image was obtained by adaptive template matching and the potential defect threshold for each pixel. It was noted that the number of templates, matching distance threshold, potential defect threshold and updating rate were adaptively updated during model training. Finally, the trained statistical model was used to inspect the IC solder joints by means of defect degree. Findings Experimental results indicated that the proposed adaptive schemes greatly contributed to the inspection performance of statistical modeling. Also, the proposed inspection method achieved better performance compared with some state-of-the-art inspection methods. Originality/value The proposed method offers a promising approach for IC solder joint inspection, which establishes different numbers of templates constructed by pixel values and template significance factors for different pixels. Also, some important parameters were adaptively updated with the updating of the model, which contributed to the inspection performance of the model.

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Section: Introductionmentioning

confidence: 99%