Flux-Coated Solder Preforms

What is Flux-Coated Solder Preform?

Flux-coated solder preform is a solder piece pre-applied with a precise amount of flux to enhance wetting, reduce oxidation, and simplify the soldering process. Common coating types include full coating, dot coating, and zone coating. These preforms are ideal for automated assembly, high-precision packaging, micro-assembly, laser soldering, and reflow applications requiring consistency and process reliability.

Customizable Shapes & Sizes

Available in standard and custom shapes like discs, rectangles, rings, and ovals.

Designed to fit various packaging and automated assembly needs.

Applications 

Flux-coated solder preforms are widely used in applications requiring high process stability and precision. 

Typical uses include semiconductor packaging, laser soldering, optoelectronic module assembly, medical devices, micro-assemblies, and automated reflow soldering.

Automatic Feeding Solutions

Automates the precise delivery of solder preforms for improved efficiency, consistency, and throughput in high-volume production

Quality Control Highlights

• High-Purity Raw Materials
  Solder alloys are made with high-purity gold and alloy elements for reliability.

• Full Material Traceability
  All batches are tracked to ensure consistent quality and avoid contamination.

• Alloy & Melting Point Testing
  Each batch is tested for composition and melting point accuracy.

• Performance Verification
  Key properties like wettability, conductivity, and hermeticity are evaluated.

• Clean Processing & Visual Check
  Produced in cleanroom conditions with inspection of surface and dimensions.

• Standard Sampling Procedure
  Inspections follow GB/T2828 S-3 for balanced quality control.