Ultrafine electrolytic copper powder for EMI shielding with high conductivity silver coating

December 10, 2013

GGP Metalpowder AG, Fürth, Germany, has expanded its traditional product range of electrolytic copper powder to include ultrafine and ultralight dendritic powders. The move is in response to increasing demand in the electronic industry for various applications such as EMI shielding and flexible circuit boards (FCB).

Since copper is the best conductive material for electric current after gold and silver, it is used as low cost alternative to powders out of precious metals whenever possible. However, silver coating is still needed to meet the high demands in technical applications concerning electrical conductivity and it is only a special silver coating technology that provides ultra-low resistance in a disintegrated form (like powder particles) compared to solid material.


As can be seen in the SEM pictures morphology is extremely delicate and requires special treatment and smooth operation in production

Dendritic morphology of electrolytic copper powder gives another advantage over spherical or irregular powders, as it provides multiple contact points within a conductive layer. Also important is that the dendritic shape provides flexibility of the conductive layer in the flexible printed circuit boards increasingly used in smart phones and tablet PC´s.

“The achievements of this new silver coated ultrafine dendritic copper powders opened the door into completely new application and we are extremely happy participating in a new and long term booming market for electrolytic copper powders and silver coated ECP,” stated the company.


Powder Metallurgy Review magazine cover

In the latest issue of PM Review…

Download PDF

Extensive Powder Metallurgy industry news coverage, and the following exclusive deep-dive articles and reports:

  • Hot Isostatic Pressing for the production of large, near-net shape components
  • Safeguarding PM part usage in a new automotive industry
  • How to make metal powders., Part 3
  • Company profile: Jiangxi Yuean Advanced Materials

The latest news from the world of metal powders, delivered to your inbox

Don't miss any new issue of PM Review, and get the latest industry news. Sign up to our weekly newsletter.

Sign up

From the industry…

Discover our magazine archive…

The free-to-access PM Review magazine archive offers unparalleled insight into the world of Powder Metallurgy from a commercial and technological perspective through:

  • Reports on visits to leading PM part manufacturers, metal powder manufacturers and industry suppliers
  • Articles on technology and application trends
  • Information on materials developments
  • Reviews of key technical presentations from the international conference circuit
  • International industry news

All past issues are available to download as free PDFs or view in your browser.


Browse the archive


Looking for PM production equipment, metal powders, R&D support and more?

Discover suppliers of these and more in our
advertisers’ index and buyer’s guide, available in the back of PM Review magazine.

  • Powders & materials
  • Powder process, classification & analysis
  • PM products
  • Atomisers & powder production technology
  • Compaction presses, tooling & ancillaries
  • Sintering equipment & ancillaries
  • Post-processing
  • Consulting & toll sintering
Download PDF
Share via
Copy link