Product Specification

Precision Gold Plating Service

We provide professional precision gold plating services for semiconductor packaging, optoelectronic components, precision electronics, RF devices, sensors, and customized metal parts.

Our service covers surface pretreatment, activation, nickel underplating, gold plating, cleaning, inspection, and quality control. Based on the substrate material, part geometry, plating area, and final application, we can provide customized plating solutions for prototypes, small batches, and mass production.

Available Materials

We support gold plating on various metal substrates, including:

• Kovar
• Copper and copper alloys
• Nickel and nickel alloys
• Stainless steel
• Iron-nickel alloys
• Other electroplatable metal materials

A typical plating structure is:

Metal Substrate → Nickel Layer → Gold Layer

The nickel layer helps improve adhesion and acts as a diffusion barrier, while the gold layer provides excellent conductivity, corrosion resistance, oxidation resistance, solderability, and long-term surface stability.

Key Features

• Customized nickel and gold thickness
• Full-surface or selective gold plating
• Good coating adhesion
• Uniform and clean surface finish
• Excellent electrical conductivity
• Good corrosion and oxidation resistance
• Suitable for precision and small-size components
• Prototype, small-batch, and volume production available

Typical Applications

Our gold plating service is widely used for:

• Semiconductor package housings
• Kovar frames and sealing components
• Optical window frames
• Laser and photodetector packages
• TO package components
• RF and microwave components
• Sensors
• Precision electrical contacts
• Vacuum and hermetic sealing parts
• Customized precision metal components

Information Required for Quotation

For a quick evaluation and quotation, please provide:

• Substrate material
• 2D or 3D drawing
• Part dimensions
• Plating area
• Nickel thickness
• Gold thickness
• Gold purity or plating type
• Quantity
• Final application

If the plating thickness has not yet been determined, you may provide the application and technical requirements, and we can assist with process evaluation.

FAQ

1. What materials can be gold plated?

Common materials include Kovar, copper, copper alloys, nickel alloys, stainless steel, and other suitable metal substrates.

2. Is nickel plating required before gold plating?

In many applications, yes. A nickel underlayer is commonly used to improve adhesion, provide a diffusion barrier, and enhance corrosion resistance. The exact plating structure depends on the substrate and application.

3. Can you customize the gold thickness?

Yes. Both nickel and gold thickness can be customized according to customer drawings and technical requirements.

4. Do you offer selective gold plating?

Yes. Both full-surface and selective gold plating can be evaluated depending on the geometry and masking requirements of the part.