DNP high-frequency copper-foil micro-etch processing
Dai Nippon Printing Co., Ltd. · Packaging processes and engineering validation
- Purpose
- RF transition-loss comparison needs copper surfaces separated from geometry and fixture effects.
- Technical approach
- DNP micro-etches electrolytic or rolled copper foil to adjust thickness, roughness and patterns.
- Scope of use
- Consider high-frequency board foil processing using supplied or DNP-arranged material; confirm packaging-stack suitability.
- Limitations and open questions
These evaluation considerations are compiled by BLNKK from public information. They are not supplier guarantees or a mandatory submission checklist.
Scope and limitationsSurface-processing data do not guarantee insertion loss of a complete package path or remove connector, fixture or other stack effects. Feasibility depends on material and use.
What to prepareBLNKK suggests preparing foil, thickness/roughness, resin-interface and trace details for comparisons using matched bands, ports and deembedding.
Confirm with the supplierConfirm material supply, processing range, roughness/adhesion tradeoffs, measurement conditions and prototype evaluation for the actual stack.
- Public evidence
- The official page describes the service and high-frequency adhesion/transmission-loss considerations.
Contact the supplier
Find the company’s contact details and ask about this solution through its official channels.
Related engineering problems
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BLNKK organizes information from public sources. A company profile does not imply a documented solution. Applicability still needs confirmation against your samples and engineering conditions.