Direct metallisation of polyetherimide substrates by activation with different metals

Thomas D. A. Jones, Assel Ryspayeva, Mohammadreza Nekouie Esfahani, Matthew P. Shuttleworth, Russell A. Harris, Robert W. Kay, Marc Phillipe Yves Desmulliez, Jose Marques-Hueso

Research output: Contribution to journalArticle

Abstract

This article reports the performance of different metallic ions and nanoparticles (Ag, Cu, Ni, Pd, Cr, Co, Au and Fe) used as seed layers, formed by chemical or optical reduction, for the electroless Cu plating of metal tracks onto polyetherimide (PEI). Plated Cu performance was tested by adhesion, electrical conductivity, plating rate, XPS, SEM, XRD and EDX analysis. The application of Cu and Ag seeds resulted in high quality electroless Cu deposits presenting strong adhesion properties and high conductivity ((2.0 ± 0.5) × 107 S/m and (3.6 ± 0.2) × 107 S/m, respectively) compared with bulk copper (5.96 × 107 S/m). Performance is attributed to the high surface density and uniformity of seed layers. Of the metals, only Ag ions were photoreduced under the conditions applied and were subsequently used to electroless Cu plate high quality track features of 150 μm width. The application of sulphuric acid pre-treatment to PEI prior to Ag ion exchange, improved the photoinitiated track formation process, as demonstrated by a threefold increase to both photoinduced Ag nanoparticle density on the surface and electroless Cu plating rate, as well as improved electroless Cu adhesion to PEI.

Original languageEnglish
Pages (from-to)285-296
Number of pages12
JournalSurface and Coatings Technology
Volume360
Early online date9 Jan 2019
DOIs
Publication statusPublished - 25 Feb 2019

Fingerprint

Polyetherimides
Metallizing
plating
Plating
Seed
seeds
adhesion
Adhesion
Metals
Chemical activation
activation
Substrates
metals
Ions
Nanoparticles
nanoparticles
ions
pretreatment
Copper
Energy dispersive spectroscopy

Keywords

  • Direct metallisation
  • Electrical interconnect
  • Electroless copper
  • Metal catalyst
  • Photoreduction
  • Polyetherimide

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Jones, T. D. A., Ryspayeva, A., Nekouie Esfahani, M., Shuttleworth, M. P., Harris, R. A., Kay, R. W., ... Marques-Hueso, J. (2019). Direct metallisation of polyetherimide substrates by activation with different metals. Surface and Coatings Technology, 360, 285-296. https://doi.org/10.1016/j.surfcoat.2019.01.023
Jones, Thomas D. A. ; Ryspayeva, Assel ; Nekouie Esfahani, Mohammadreza ; Shuttleworth, Matthew P. ; Harris, Russell A. ; Kay, Robert W. ; Desmulliez, Marc Phillipe Yves ; Marques-Hueso, Jose. / Direct metallisation of polyetherimide substrates by activation with different metals. In: Surface and Coatings Technology. 2019 ; Vol. 360. pp. 285-296.
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Direct metallisation of polyetherimide substrates by activation with different metals. / Jones, Thomas D. A.; Ryspayeva, Assel; Nekouie Esfahani, Mohammadreza; Shuttleworth, Matthew P.; Harris, Russell A.; Kay, Robert W.; Desmulliez, Marc Phillipe Yves; Marques-Hueso, Jose.

In: Surface and Coatings Technology, Vol. 360, 25.02.2019, p. 285-296.

Research output: Contribution to journalArticle

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T1 - Direct metallisation of polyetherimide substrates by activation with different metals

AU - Jones, Thomas D. A.

AU - Ryspayeva, Assel

AU - Nekouie Esfahani, Mohammadreza

AU - Shuttleworth, Matthew P.

AU - Harris, Russell A.

AU - Kay, Robert W.

AU - Desmulliez, Marc Phillipe Yves

AU - Marques-Hueso, Jose

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AB - This article reports the performance of different metallic ions and nanoparticles (Ag, Cu, Ni, Pd, Cr, Co, Au and Fe) used as seed layers, formed by chemical or optical reduction, for the electroless Cu plating of metal tracks onto polyetherimide (PEI). Plated Cu performance was tested by adhesion, electrical conductivity, plating rate, XPS, SEM, XRD and EDX analysis. The application of Cu and Ag seeds resulted in high quality electroless Cu deposits presenting strong adhesion properties and high conductivity ((2.0 ± 0.5) × 107 S/m and (3.6 ± 0.2) × 107 S/m, respectively) compared with bulk copper (5.96 × 107 S/m). Performance is attributed to the high surface density and uniformity of seed layers. Of the metals, only Ag ions were photoreduced under the conditions applied and were subsequently used to electroless Cu plate high quality track features of 150 μm width. The application of sulphuric acid pre-treatment to PEI prior to Ag ion exchange, improved the photoinitiated track formation process, as demonstrated by a threefold increase to both photoinduced Ag nanoparticle density on the surface and electroless Cu plating rate, as well as improved electroless Cu adhesion to PEI.

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Jones TDA, Ryspayeva A, Nekouie Esfahani M, Shuttleworth MP, Harris RA, Kay RW et al. Direct metallisation of polyetherimide substrates by activation with different metals. Surface and Coatings Technology. 2019 Feb 25;360:285-296. https://doi.org/10.1016/j.surfcoat.2019.01.023