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Aluminum Wire - Strong Electric Conductivity

Aluminum Wire

COINING specializes in supplying Aluminum wire which is used in microelectronics devices as an electrical interconnect, either between a chip and a substrate or between two chips. Aluminum wire is used throughout the electronics industry due to its low cost and suitability for ultrasonic wedge bonding. It also eliminates the problem of “purple plague” associated with gold wire bonded to an aluminum contact.  


We can draw aluminum alloys to diameters as small as 0.0005” 
Aluminum wires are available in Fine pitch sizes and higher pull test strength when compared with Aluminum Ribbon

Material Specification
99.999% Aluminum 99.99% Aluminum + Ni

Al -99.998%min.;
Ni < 2ppm;
Cu, Mg, Si, Fe < 5ppm

Al –99.99%;
Ni –47-53ppm;
Cu, Mg < 20ppm;
Si, Fe < 10ppm


Alloyed wires are generally preferred to pure Aluminum because of greater drawing ease to fine sizes and higher pull test strengths in a finished device. The addition of nickel causes the Aluminum wire to be corrosion resistant. COINING also offers Al-Si, Al-Cu and Al-Mg wire.

Aluminium wire - Metal Bonding

  • Homogenous high-purity
  • Strong electrical conductivity
  • Ultra-clean surfaces
  • Smooth finish
  • Fine pitch
High power applications

  • Automotive
  • Microelectronic devices
  • RF Microwave
  • High-power applications
Aluminum Wire - COINING