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A solution for PCB drilling with strict requirement on hole wall quality

Lianyu Fu (Shenzhen Jinzhou Precision Technology Corp., Shenzhen, People's Republic of China)
Fan Yang (Shenzhen Jinzhou Precision Technology Corp., Shenzhen, People's Republic of China)

Circuit World

ISSN: 0305-6120

Article publication date: 16 May 2008

Abstract

Purpose

To provide a solution for PCB drilling with strict requirements on hole wall quality.

Design/methodology/approach

The influential mechanism of key micro drill bit parameters on hole wall roughness is analyzed. A new type of micro drill bit is developed on the basis of theoretical analysis and experimental verifications.

Findings

The key factors in drill bit design which can enable superior hole wall quality are described. Experimental results show that very good hole wall quality is achieved by such newly developed drill bits. Meanwhile, the new drill bits show good performance in terms of wear‐resistance and hole registration accuracy. A solution for PCB drilling with strict requirements on hole wall quality is provided.

Originality/value

The paper highlights the influential mechanism of key parameters of micro drill bit design on the hole wall quality of PCBs. A new kind of micro drill bit which can achieve superior hole wall quality has been developed.

Keywords

Citation

Fu, L. and Yang, F. (2008), "A solution for PCB drilling with strict requirement on hole wall quality", Circuit World, Vol. 34 No. 2, pp. 8-11. https://doi.org/10.1108/03056120810874528

Publisher

:

Emerald Group Publishing Limited

Copyright © 2008, Emerald Group Publishing Limited