Potential of Commercial Wood-Based Materials as PCB Substrate

Kirsi Immonen (Corresponding Author), Johanna Lyytikäinen, Janne Keränen, Kim Eiroma, Mika Suhonen, Minna Vikman, Ville Leminen, Marja Välimäki, Liisa Hakola

Research output: Contribution to journalArticleScientificpeer-review

Abstract

In our research on sustainable solutions for printed electronics, we are moving towards renewable materials in applications, which can be very challenging from the performance perspective, such as printed circuit boards (PCB). In this article, we examine the potential suitability of wood-based materials, such as cardboard and veneer, as substrate materials for biodegradable solutions instead of the commonly used glass-fiber reinforced epoxy. Our substrate materials were coated with fire retardant materials for improved fire resistance and screen printed with conductive silver ink. The print quality, electrical conductivity, fire performance and biodegradation were evaluated. It was concluded that if the PCB application allows manufacturing using screen printing instead of an etching process, there is the potential for these materials to act as substrates in, e.g., environmental analytics applications.

Original languageEnglish
Article number2679
Number of pages13
JournalMaterials
Volume15
Issue number7
DOIs
Publication statusPublished - 5 Apr 2022
MoE publication typeA1 Journal article-refereed

Keywords

  • biodegradation
  • cellulose
  • fire retardant
  • printed circuit board
  • screen printing
  • veneer

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