COPPER FOIL · ELECTRICAL CONTACT
Self-adhesive copper foil for shielding and grounding
Self-adhesive copper foil can be used for shielding and grounding in electronic assemblies. Whether the adhesive also provides the required electrical contact depends on the specific product construction and must be checked for the application.
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Selection criteria
Check copper carrier and adhesive separately
Start with the electrical task: must the copper surface provide shielding, or must current also pass through the adhesive layer? The range includes products with conductive and non-conductive adhesives. Then check the substrate, contact point, component geometry and required delivery form against the construction of the individual product.
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COPPER FOILS IN THE RANGE
Self-adhesive copper foils in the product listing
The listing shows copper foils and copper foil tapes with different constructions. Check the adhesive's electrical properties and suitability in each product's data.
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COPPER FOIL SELECTION GUIDE
When is a conductive adhesive layer needed?
In tesa 60537, both the copper carrier and the acrylic adhesive are electrically conductive; the manufacturer describes shielding and grounding uses for displays and other components. The 3M range also includes embossed copper foil with a non-conductive adhesive. A conductive metal carrier alone therefore does not establish a conductive path through the adhesive layer.
For your selection, we clarify the contact area, component shape, processing and required function. Krückemeyer GmbH can convert suitable starting material into cut pieces or die-cut parts for the application; feasibility and design depend on the material and geometry.
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COPPER FOIL QUESTIONS
Is the adhesive on every self-adhesive copper foil electrically conductive?
No. For self-adhesive copper foil, the conductivity of the carrier and the adhesive must be considered separately. tesa 60537 has an electrically conductive copper carrier and a conductive acrylic adhesive. The 3M range also includes embossed copper foils with a non-conductive adhesive. The key question is whether you need only a conductive surface or also electrical contact through the adhesive layer. Check the documented construction of the specific product.
What is conductive self-adhesive copper foil used for?
For suitable products, the manufacturer describes shielding and grounding tasks in electronic components. For example, tesa 60537 is specified for EMI shielding and ESD grounding in displays and other components. That does not make every copper foil suitable for the same assembly. Compare the required function, contact point and processing conditions with the data sheet and your actual application.
What should be checked for electrical contact at a bonded joint?
Check whether the electrical path must run along the copper surface or through the adhesive layer. A copper carrier alone does not prove a conductive connection to the bonded surface. The documented product construction shows whether the adhesive is conductive too. You also need to consider the substrate, intended contact area and installation conditions. The electrical function of the complete assembly must be assessed for the application.
Can self-adhesive copper foil be supplied as a die-cut part?
Application-specific converting is possible when the starting material and geometry suit the intended process. Krückemeyer GmbH processes suitable materials into cut pieces and die-cut parts. For a useful enquiry, specify the foil construction, dimensions, contour, delivery form and electrical task. These details allow the feasible design to be assessed; die cutting does not change the material's electrical properties.
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Request advice
Describe the shielding or grounding task, the contact surfaces and the shape you need. We will assess the suitable material and delivery form with you.
Specify copper foil for your assembly
Send us the requirements for electrical contact, substrate and component shape. We will discuss product selection and suitable converting options for your application.
COPPER FOIL ADVICE
Thomas Klein
Contact for products
Thomas Klein can help you select self-adhesive copper foil for your application.