Elimination of Hole Mouth Burr in Multilayer PCB Micro-Hole by Using Micro-EDM

The micro-hole is a key structure in multilayer printed circuit board (PCB), as it enables the effective transmission of electrical signals. At present, the most common way to machine PCB micro-holes is mechanical drilling using micro-bit. However, in the mechanical drilling of micro-holes, these ho...

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Bibliographic Details
Main Authors: Xinke Feng, Bin Xu, Jianguo Lei, Xiaoyu Wu, Feng Luo, Lianyu Fu
Format: Article
Language:English
Published: MDPI AG 2021-06-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/12/6/688