Effect of black copper oxide on interface adhesion between copper substrate and glob-top resin

M. Lebbai, J. K. Kim, M. M.F. Yuen, P. Tong

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

8 Scopus citations

Abstract

A study is made of the effects of black copper oxide coating and other plating variables on adhesion strength of glob-top resin to copper substrates for Tape Ball Grid Array (TBGA) package applications. The button shear test was performed to measure the interfacial bonding strength. Several surface analytical techniques were employed to establish the correlations between the interface bond strength and various surface parameters, such as surface free energy, chemical element, surface roughness and fracture morphology. The experimental results showed that the presence of black oxide coating (Sample C) resulted in significantly higher interface bond strength than the bare copper (Sample A) or nickel coated (Sample B) surfaces. Further processes (Samples D and E) after the black oxide coating exhibited detrimental effects, to a varying degree, on interface bond strength. The interface bond strength was approximately proportional both to surface free energy and roughness of surface finishes, indicating that wettability and mechanical interlocking both played a significant role in forming adhesion with glob top resins.

Original languageBritish English
Title of host publication4th International Conference on Adhesive Joining and Coating Technology in Electronics Manufacturing, Proceedings - Presented at Adhesives in Electronics 2000
EditorsMarika Hyytiainen
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages61-69
Number of pages9
ISBN (Electronic)0780364600, 9780780364608
DOIs
StatePublished - 2000
Event4th International Conference on Adhesive Joining and Coating Technology in Electronics Manufacturing - Espoo, Finland
Duration: 18 Jun 200021 Jun 2000

Publication series

Name4th International Conference on Adhesive Joining and Coating Technology in Electronics Manufacturing, Proceedings - Presented at Adhesives in Electronics 2000

Conference

Conference4th International Conference on Adhesive Joining and Coating Technology in Electronics Manufacturing
Country/TerritoryFinland
CityEspoo
Period18/06/0021/06/00

Keywords

  • Adhesives
  • Bonding
  • Coatings
  • Copper
  • Resins
  • Rough surfaces
  • Surface cracks
  • Surface finishing
  • Surface morphology
  • Surface roughness

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