UV/ozone treatment for adhesion improvement of copper/epoxy interface

Autor: Shingyu Bok, Byungkwon Lim, Guh-Hwan Lim
Rok vydání: 2017
Předmět:
Zdroj: Journal of Industrial and Engineering Chemistry. 46:199-202
ISSN: 1226-086X
DOI: 10.1016/j.jiec.2016.10.031
Popis: We developed a simple and efficient method for adhesion improvement of Cu/epoxy interface by utilizing UV/ozone treatment for surface oxidation of Cu substrates. X-ray photoelectron spectroscopy analysis revealed that metallic Cu surface was directly oxidized to CuO and Cu(OH)2 by UV/ozone treatment. The adhesion of a UV/ozone-treated and then silane-coated Cu substrate to a molded epoxy layer was greatly improved compared to that of a bare Cu substrate. Using this approach, we obtained the peel strength as high as 0.46 kgf/cm from a low-roughness Cu substrate with Rq of ∼0.1 μm.
Databáze: OpenAIRE