Refined Copper Etching Foil for PCBs
Thin refined copper foil, 0.035mm thick, used in printed circuit board manufacturing for etching conductive traces. It falls under HTS 7410.11.00.00 as unbacked foil of refined copper with thickness not exceeding 0.15mm. The high purity ensures excellent conductivity and etchability.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If backed with paper, plastics, or similar materials
Backing materials change classification to backed copper foil under 7410.21, regardless of thickness.
If thickness exceeds 0.15mm
Copper plates/sheets/strip over 0.15mm thick fall under Chapter 74 heading 7409, not foil.
If processed into flexible printed circuits
Finished flexible PCBs with copper conductors are classified as insulated electric conductors in Chapter 85.
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Import Tips & Compliance
• Verify copper purity meets 'refined copper' standards via assay certificates to avoid reclassification
• Measure thickness excluding any temporary handling layers; provide caliper test reports
• Ensure no adhesive backing; declare as 'not backed' with photos or cross-sections if audited
Related Products under HTS 7410.11.00.00
Electrolytic Refined Copper Foil 0.1mm
High-grade electrolytic refined copper foil, 0.1mm thick, unbacked, for flexible electronics and RF shielding. Classified under HTS 7410.11.00.00 due to its refined copper composition and thinness under 0.15mm without backing. Ideal for high-frequency applications requiring low signal loss.
Unbacked Refined Copper Foil for Coinage Dies
Pure refined copper foil, 0.12mm thick, used for stamping coinage dies and medallions. Meets HTS 7410.11.00.00 as not backed, refined copper foil ≤0.15mm. Its malleability suits precision minting applications.
High Purity Refined Copper Foil for Heat Sinks
0.08mm refined copper foil for fabricating thin heat sink fins in electronics cooling. HTS 7410.11.00.00 applies as unbacked refined copper foil under 0.15mm thickness. Excellent thermal conductivity for compact thermal management.
Refined Copper Foil for EMI Shielding Tape
Thin 0.05mm refined copper foil for EMI/RFI shielding tapes in consumer electronics. Unbacked status and thickness qualify it for HTS 7410.11.00.00 as refined copper foil. Provides effective electromagnetic interference protection.
Refined Copper Foil for Decorative Laminates
0.14mm refined copper foil for high-end decorative surface laminates in furniture. HTS 7410.11.00.00 for unbacked refined copper foil under 0.15mm thickness. Offers metallic aesthetic without alloy discoloration.
Microwave Antenna Copper Foil
Specialized 0.07mm refined copper foil for microwave antenna substrates and patches. Classifies under HTS 7410.11.00.00 as unbacked refined copper foil ≤0.15mm. Low surface roughness optimizes RF performance.