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Organic Thin Film-Assisted Copper Electroless Plating on Flat/Microstructured Silicone Substrates
Tomoya SATO
Narendra SINGH
Roland HÖNES
Chihiro URATA
Yasutaka MATSUO
Atsushi HOZUMI
Publication
IEICE TRANSACTIONS on Electronics
Vol.E102-C
No.2
pp.147-150
Publication Date: 2019/02/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.2018OMS0004
Type of Manuscript: BRIEF PAPER
Category:
Keyword:
electroless plating, polydimethylsiloxane (PDMS), polymer brush, self-assembled monolayer (SAM), polydopamine, surface-initiated atom transfer radical polymerization (SI-ATRP), micropatterning,
Full Text: PDF(1.2MB)>>
Summary:
Copper (Cu) electroless plating was conducted on planar and microstructured polydimethylsiloxane (PDMS) substrates. In this study, organic thin films terminated with nitrogen (N)-containing groups, e.g. poly (dimethylaminoethyl methacrylate) brush (PDMAEMA), aminopropyl trimethoxysilane monolayer (APTES), and polydopamine (PDA) were used to anchor palladium (Pd) catalyst. While electroless plating was successfully promoted on all sample surfaces, PDMAEMA was found to achieve the best adhesion strength to the PDMS surfaces, compared to APTES- and PDA-covered PDMS substrates, due to covalent bonding, anchoring effects of polymer chains as well as high affinity of N atoms to Pd species. Our process was also successfully applied to the electroless plating of microstructured PDMS substrates.
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