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Aluminium electrically conductive filler for firing

Outline

A lightweight electrically conductive filler with no migration

This is an aluminium filler for firing that is given excellent electrical conductivity performance by devising the shape and particle diameters of the aluminium filler and the firing conditions.
Compared with silver, it is lighter weight and cheaper and also migration does not occur.

Small diameter flakes

Extremely thin flakes

It has been thought that aluminium powders and flakes do not have electrical conductivity due to the effects of surface oxide films.
Toyo Aluminium considered the firing conditions and took measures in the flake profiles and diameters and has developed a filler for firing that has excellent electrical conductivity performance.

Features

In comparison to silver flakes, the aluminium electrically conductive filler for firing from Toyo Aluminium has the characteristics outlined below. Please consider it as a method to reduce costs for silver paste.

  • Low cost
  • Large electrical conductivity per unit weight because it is lightweight
  • There is no occurrence of ion migration

Example products

Product name Characteristics Average particle diameter (µm)
RD10-3560 Large diameter flakes 13
RD10-3561 Medium diameter flakes 8
RD10-3562 Small diameter flakes 6
RD10-3563 Extremely thin flakes 10

Example applications

  • Wiring materials
  • External terminal electrodes
  • There is no ion migration

* We can respond to consultations about different combinations of materials, particle profiles and particle diameters to those shown in the product examples.
Please contact us for details.

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