Chip Appearance Inspection Method for High-Precision SMT Equipment

In order to meet the defect-detection requirements of chips in high-precision surface mount technology (SMT) equipment widely used in the electronic industry, a chip appearance defect-detection method based on multi-order fractional discrete wavelet packet decomposition (DWPD) is proposed in this pa...

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Bibliographic Details
Main Authors: Huiyan Zhang, Hao Sun, Peng Shi
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Machines
Subjects:
Online Access:https://www.mdpi.com/2075-1702/9/2/34