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US 5,296,651 AGranted
Flexible circuit with ground plane
AssigneeHewlett-Packard Company
InventorsFrancis E. Gurrie, Wojtek Sudol
Life of this patent
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Abstract
A flexible circuit suitable for high density applications and having a long flexural life is disclosed. A thin film metallic ground plane deposited on a dielectric substrate electrically shields the conductor traces in the flexible circuit and eliminates cross-talk between conductor traces without reducing the flexibility or the flexural life of the flexible circuit.
Claims7
A planar flex circuit comprising:
- conductor traces at approximately a center plane of the flex circuit;
- first and second dielectric layers on opposite sides of the center plane joined to each other and to the conductor traces through adhesive;
- and
- a planar conductor formed on at least one of the dielectric layers on a surface facing the conductor traces and separated from the conductor traces by the adhesive.
1 more element
Dependencies are inferred from the claim text.