Aluminum and Copper Bonding Wires for Power Devices

Image of aluminum and copper bonding wire for power devices

What are "Aluminum and Copper Bonding Wires for Power Devices"?
Copper and copper alloy bonding wires are bonding materials used to electrically connect electrodes between semiconductor chips and substrates, and are attracting attention as an alternative to gold wires due to their high conductivity and cost benefits.We also offer palladium-coated copper (PCC) bonding wires, which offer bondability and bonding reliability while reducing costs.

The Standard for Power Devices

TANAKA ELECTRONICS offers high-purity aluminum (Al) and copper (Cu) bonding wires and ribbons with excellent surface properties of automotive grade. As aluminum has excellent corrosion resistance, it is often used in power device applications that drive high currents under harsh environments. TANAKA ELECTRONICS also offers wires for power devices with copper materials, which have even better electrical conductivity.

TANW – Aluminum Bonding Wire for Power Devices

Features

  • Has a track record of many use cases in various power devices and modules such as IGBTs and MOSFETs
  • Also used for connecting lithium-ion batteries of electric vehicles
  • Has good bondability and excellent moisture resistance
  • Available in various winding lengths from 50m to 1000m
TANW—Aluminum Bonding Wire for Power Devices
Examples of TANAKA's Bonding
TANAKA's Applications - Lithium-ion Batteries

Cross Section after Pressure Cooker Test

  Time (hrs)
20 100 1000
TANW
Pure Al

Cross Section after PCT (Wire Dia.300µm)
PCT Condition : 121degC 100%RH 2atm

Wire Diameter

Diameter μm 100 125 150 175 200 250 300 350 380 400 450 500
mil 4 5 6 7 8 10 12 14 15 16 18 20

TABR– Aluminum Bonding Ribbon for Power Devices

Features

  • Used for connecting power devices and batteries
  • Especially suitable for high-density devices that require low resistance, high current voltage, and high reliability.
  • Has moisture resistance equivalent to TANW
  • Stable bonding is possible due to smooth and clean surface
TABR - Aluminum Bonding Ribbon for Power Devices
Examples of TABR Bonding

Cross Section Shape of TABR

Cross-sectional structure of TABR
Width: 2.0 mm
Thickness: 0.2 mm

Ribbon Size

List of Applicable Sizes for TABR

*For other sizes, please Inquiry.

CP-1 – Copper Bonding Wire for Power Devices

Features

  • Used for connecting power devices and batteries
  • Especially suitable for devices that require low power loss and heat resistance
  • Has excellent electrical conductivity and melting current because the material is copper
CP-1 - Copper Bonding Wire for Power Devices
Example of Bonding Using CP-1

Electrical Resistance and Fusing Current

Comparison of Electrical Resistance at 20mm (mΩ) of CP-1: Al/Cu/Ag
Electrical Resistance at 20mm (mΩ)
Comparison of Fusing Current at 20mm (A) for CP-1: Al/Cu/Ag
Fusing Current at 20mm (A)

*Values are measured values and are not guaranteed values.

Wire Diameter

Diameter μm 200 250 300 350 380 400 450 500
mil 8 10 12 14 15 16 18 20

Download Technical Data

Technical data can be downloaded from the banner below.

Download Technical Data

Related Information

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