CCA Foil and Copper Foil: Structure and Processing

Compare the foil constructions against the intended electrical and processing requirements. Specify total thickness, layer structure, width, surface quality and edge condition, then assess handling, lamination or joining with the actual part. Define the allowed material system before considering substitution.

Layer schematic, not to scale. Slitting may expose the core at an edge; inspect the actual edge and exposure conditions.

Engineering comparison

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Decision	CCA foil	copper foil	Acceptance basis
Foil structure	Thin copper-aluminum layered sheet	Thin copper sheet of specified grade and condition	Define total gauge, each layer and layer-ratio basis.
Slitting	Inspect layer continuity and exposed laminate edges	Inspect slit edge, burr and copper surface	Agree edge quality, pinhole and handling criteria for the actual width.
Electrical path	Assess sheet and joint resistance for the composite section	Assess sheet and joint resistance for the copper section	Use equal length, current path, temperature and resistance targets.
Joining	Qualify contact to the copper surface and exposed aluminum edges	Qualify contact to the copper grade and finish	Specify coating, joint stack and exposure; B566 round-wire scope is not foil qualification.

CCA Foil and Copper Foil: Structure and Processing: comparison record

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Item	Information / units	Your input
Comparison basis	Choose a common basis; no automatic equivalence is inferred	Comparison basis — your input
Baseline and candidate	Materials, construction, form and drawing revisions	Baseline and candidate — your input
Foil structure	Thin copper-aluminum layered sheet \| Thin copper sheet of specified grade and condition · Define total gauge, each layer and layer-ratio basis.	Foil structure — your input
Slitting	Inspect layer continuity and exposed laminate edges \| Inspect slit edge, burr and copper surface · Agree edge quality, pinhole and handling criteria for the actual width.	Slitting — your input
Electrical path	Assess sheet and joint resistance for the composite section \| Assess sheet and joint resistance for the copper section · Use equal length, current path, temperature and resistance targets.	Electrical path — your input
Joining	Qualify contact to the copper surface and exposed aluminum edges \| Qualify contact to the copper grade and finish · Specify coating, joint stack and exposure; B566 round-wire scope is not foil qualification.	Joining — your input
Methods, conditions and evidence	Units, test conditions, result source and reviewer	Methods, conditions and evidence — your input

Drafts are stored only in this browser when you choose Save. Clear inputs also removes the saved draft. Worksheet version: RT-RFQ-WORKSHEET-1.

Products and specifications

CCA foil copper foil Buyer Kits

Include the drawing, intended application and acceptance criteria when requesting a comparison.

Review a foil construction