Technical Advantage: Why Material Purity Matters
Unlike generic shielding tapes, we utilize Oxygen-Free High-Purity Copper (≥99.95%). This ensures lower surface resistance and prevents oxidation that typically degrades shielding effectiveness over time.
| Technical Property | Standard Grade | KAWIN Precision Grade |
| Foil Thickness | 0.035mm – 0.05mm | 0.02mm – 0.1mm (Customizable) |
| Surface Resistance | < 0.05 Ω/sq | ≤ 0.02 Ω/sq |
| Shielding Effectiveness | 60 – 70 dB | > 85 dB (30MHz to 1.5GHz) |
| Adhesive Type | Generic Acrylic | Nickel-Plated Conductive Acrylic |
| Dwell Time for Max Bond | 24 Hours | 12 Hours (Rapid Bonding) |
Key Engineering Features
XYZ-Axis Conductivity: Our specialized adhesive contains evenly dispersed nickel/silver particles, ensuring stable electrical continuity not just on the surface (X-Y), but through the adhesive layer (Z-axis).
Thermal Management Hybrid: Beyond EMI shielding, the high-purity copper acts as a localized heat spreader for sensitive SMD components on high-density PCBs.
Dead-Soft Temper: The copper foil is annealed to be “dead-soft,” allowing it to conform perfectly to irregular geometries and corners without “spring-back” failure.
Low Outgassing: Ideal for cleanroom environments and aerospace applications where chemical stability is non-negotiable.
Application Scenarios: Beyond the Basics
Data Centers & Servers: Grounding for high-speed signal transmission cables.
EV Battery Management Systems (BMS): Shielding sensitive control units from high-voltage interference.
Foldable Smartphones: Ultra-thin 0.02mm backing designed for dynamic stress in flexible hinges.
Medical Imaging (MRI): Ensuring zero-leakage shielding for sensitive diagnostic sensors.
Custom Solutions & OEM Support
We understand that one size does not fit all in the B2B sector. Our facility provides:
Precision Die-Cutting: Tolerance within ±0.05mm for automated pick-and-place assembly.
Liner Options: Single or double-sided release liners for easy high-speed dispensing.
Removable Adhesive Variants: For temporary shielding during testing phases without leaving residue.
FAQ
Q: Can your copper tape withstand reflow soldering temperatures?
A: Our copper foil tape with silicone-based conductive adhesive can withstand short-term exposure up to 155°C. For standard acrylic versions, we recommend a max limit of 120°C.
Q: How do you prevent the copper from oxidizing in high-humidity environments?
A: All KAWIN copper tapes are treated with a microscopic anti-oxidation coating that maintains conductivity without compromising the EMI shielding dB rating.
Q: Do you provide shielding effectiveness test reports?
A: Yes. Every batch can be supplied with a COA (Certificate of Analysis) and EMI shielding dB test data upon request.
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