Why Choose Soft Gold for Wire Bonding?

Superior Bondability

Soft gold provides excellent wire bonding characteristics for gold ball wire bonding applications.

Corrosion Resistance

Gold plating offers outstanding protection against oxidation and corrosion.

Optimal Conductivity

Pure gold ensures excellent electrical conductivity for high-reliability connections.

Process Control

Precise thickness control and hardness specifications for consistent bonding results.

Soft Gold Plating Specifications

Technical Parameters
  • Gold purity: 99.7% minimum
  • Hardness: 60-90 Knoop (soft gold specification)
  • Thickness range: 10-100 micro-inches
  • Typical thickness: 30-50 micro-inches
  • Nickel underplate: 50-200 micro-inches
Quality Standards
  • MIL-G-45204 Type II compliance
  • ASTM B488 Grade A
  • IPC-4552 Class 00
  • X-ray fluorescence (XRF) thickness verification
  • Bond pull test qualification

Applications

  • Semiconductor Packaging: Gold ball wire bonding for IC die attach and interconnection
  • Hybrid Microelectronics: Wire bonding on ceramic substrates and thick film circuits
  • RF/Microwave Modules: Gold wire interconnects for high-frequency applications
  • Medical Devices: Biocompatible gold bonding for implantable electronics
  • Aerospace & Defense: High-reliability wire bonding for mission-critical systems

Our Soft Gold Plating Process

1
Cleaning

Thorough surface preparation

2
Nickel Strike

Adhesion layer plating

3
Nickel Underplate

Diffusion barrier

4
Soft Gold Plating

Controlled thickness deposition

5
Inspection

XRF thickness verification

Need Soft Gold Plating?

Our soft gold plating services ensure optimal wire bonding performance for your critical applications. Contact us to discuss your requirements.

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