MULTILAYER RESIN SHEET FOR HIGH-SPEED TRANSMISSION FLEXIBLE FLAT CABLE, AND HIGH-SPEED TRANSMISSION FLEXIBLE CABLE

摘要

The present invention addresses the problem of providing a multilayer resin sheet for a high-speed transmission flexible flat cable, the multilayer resin sheet being capable of forming a high-speed transmission flexible flat cable having a desired characteristic impedance and a low dielectric loss. The present invention is a multilayer resin sheet for a high-speed transmission flexible flat cable laminated between a conductor layer installed in a predetermined pattern and a shield layer laminated on at least one of the outer surface sides of the conductor layer, wherein the multilayer resin sheet for a high-speed transmission flexible cable is provided with: a base film; a flame retardant layer laminated on the inner surface side of the base film, the flame retardant layer containing a flame retardant; and a conductor-surrounding layer laminated on the inner surface side of the flame retardant layer, no flame retardant being contained in the conductor-surrounding layer. The flame retardant layer preferably has an average thickness of 10-300 μm. The flame retardant layer preferably has an average thickness of 25%-90% of the overall average thickness.