Abstract

In this paper, the nickel–phosphorus (Ni–P) diffusion barrier layer between Sn–4Ag–0.5Cu solder alloy and copper-printed circuit board was developed. The electroless plating technique was used to develop Ni–P diffusion barrier layer with different percentage of phosphorus content, which are 1–5 wt% (low), 5–8 wt% (medium) and above 8 wt% (high). The results reveal that the high phosphorus content in nickel layer acts as a good diffusion barrier for Sn–4Ag–0.5Cu since it can suppress the intermetallic compound formation. This is because in higher phosphorus content, the grain boundaries were found to be eliminated. Hence, resulted in thinner intermetallic compound thickness.

Details

Title
Development of diffusion barrier layer on copper-printed circuit board using electroless plating method
Author
SITI RABIATULL AISHA IDRIS; OURDJINI, ALI; AZMAH HANIM MOHAMAD ARIFF; Osman, Saliza Azlina
Pages
229-339
Publication year
2015
Publication date
Dec 31, 2015
Publisher
W I T Press
ISSN
20460546
e-ISSN
20460554
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2253985175
Copyright
© 2015. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the associated terms available at https://www.witpress.com/journals/cmem or in accordance with the terms at https://creativecommons.org/licenses/by/4.0/ (the “License”), if applicable