Durable EMI shielding film
Assignee3M Innovative Properties Company
InventorsArnold W. Funkenbusch, Clark I. Bright, Robert J. Fleming
Life of this patent
Estimating the term…
Abstract
A device or an enclosed area that can cause or is sensitive to electromagnetic interference (EMI) is shielded by at least partially surrounding the device or the area with a visible light-transmissive film comprising a flexible support, an extensible visible light-transmissive metal or metal alloy layer and a visible light-transmissive crosslinked polymeric protective layer, and optionally connecting at least one grounding electrode to the metal or metal alloy layer. The film has reduced susceptibility to fracture or corrosion compared to commercially available EMI shielding films, especially when bent or deformed.
Claims30
An electromagnetically shielded article comprising a device or enclosed area that can cause or is sensitive to electromagnetic interference, wherein the device or area is at least partially surrounded with a visible light-transmissive film comprising a flexible support, a visible light-transmissive crosslinked polymeric protective layer, and an extensible visible light-transmissive metal or metal alloy layer sandwiched therebetween.
An electromagnetically shielded article comprising a device or enclosed area that can cause or is sensitive to electromagnetic interference, wherein the device or area is at least partially surrounded with a visible light-transmissive film comprising a flexible support, an extensible visible light-transmissive metal or metal alloy layer and a visible light-transmissive crosslinked polymeric protective layer.
A process for transparently shielding a device or an enclosed area that can cause or is sensitive to electromagnetic interference, comprising at least partially surrounding the device or area with a visible light-transmissive film comprising a flexible support, a visible light-transmissive crosslinked polymeric protective layer, and an extensible visible light-transmissive metal or metal alloy layer sandwiched therebetween.
Dependencies are inferred from the claim text.