Reliability ISIG Surface Finish for Superior Solderability and Oxidation Resistance
Enhance solderability, bolster oxidation resistance, and extend shelf life with DES’s cutting-edge Immersion Silver Over Immersion Gold (ISIG) solution.
ISIG (Immersion Silver Over Immersion Gold) Solutions
ISIG (Immersion Silver Over Immersion Gold) is a premium surface finish combining the benefits of both immersion silver and immersion gold. This hybrid finish is designed to deliver superior solderability, excellent oxidation resistance, and extended shelf life—making it ideal for demanding PCB applications requiring durability and long-term performance. At DES, we use advanced ISIG technology to ensure reliable interconnects and consistent results across high-density and high-frequency boards.
Why Choose DES?
Precision Plating for Advanced Designs
Gold Wire Bonding Compatibility
Superior Corrosion Resistance
Proven Expertise with Fine-Line PCBs
Elevate Your PCBs with DES’s Advanced ISIG Surface Finishes
Key Principles of Effective ISIG Application
At Data Electronic Services (DES), we follow these six core principles to ensure exceptional ISIG finish quality and consistency:
Optimized Gold Underlayer Deposition
A thin, uniform layer of immersion gold is applied to stabilize the surface and act as a diffusion barrier before silver deposition.
Controlled Silver Layer Application
The immersion silver is precisely deposited over the gold layer to ensure enhanced solderability and protection against oxidation.
Surface Cleanliness and Preparation
We ensure the substrate is free from organic contaminants and oxides for optimal adhesion of both metal layers.
Adhesion Reliability
The intermetallic bonding between copper, gold, and silver layers ensures reliable connections and prevents delamination during reflow.
Shelf-Life Assurance
ISIG-treated boards are subjected to aging and storage simulations to verify long-term reliability and performance.
RoHS and Environmental Compliance
The ISIG process complies with global environmental standards and avoids the use of heavy metals or hazardous substances.