The present invention relates to a high speed transmission cable (100) that includes a first inner conductor (110) and a dielectric film (120) that is concentrically arranged around at least a portion of the first conductor (110). The dielectric film (120) has a base layer (122) including a plurality of first protrusions (124) and second protrusions (126) formed on a first major surface of the base layer (122), wherein the first protrusions (124) and the second protrusions (126) are different from one another. The first protrusions (124) of the dielectric film (120) are disposed between the first inner conductor (110) and the base layer (122), the first protrusions (124) forming an insulating envelope around the first inner conductor (110).

A printed circuit board comprises a substrate and a routing structure arranged on the substrate, the substrate has a welding region and a routing region electrical connected with the welding region. The routing structure comprises a plurality of bonding pads connected with corresponding wires and a plurality of conductive traces electrically connected with the bonding pads, the bonding pads is arranged in the welding region, and the conductive traces are disposed in both the welding region and the routing region. The bonding pads are arranged abreast, and in the arrangement direction of the bonding pads, the bonding pads defines at least two grounding pads for connecting with grounding wires and at least a signal pad between the two grounding pads.

A shielded electrical cable includes conductor sets extending along a length of the cable and spaced apart from each other along a width of the cable. First and second shielding films are disposed on opposite sides of the cable and include cover portions and pinched portions arranged such that, in transverse cross section, the cover portions of the films in combination substantially surround each conductor set. An adhesive layer bonds the shielding films together in the pinched portions of the cable. A transverse bending of the cable at a cable location of no more than 180 degrees over an inner radius of at most 2 mm causes a cable impedance of the selected insulated conductor proximate the cable location to vary by no more than 2 percent from an initial cable impedance measured at the cable location in an unbent configuration.

A flat data transmission cable includes a plurality of juxtaposed wires and a plastic layer enclosing on the wires integrally, each wire has a conductor. Central axes of the conductors are located on a same plane, and the plastic layer defines a top surface and a bottom surface parallel to the plane in which the central axes of the conductors located, the wires define at least two grounding wires and at least a signal wire between the two grounding wires.

A flat data transmission cable includes a plurality of juxtaposed wires, a plastic layer enclosing on the wires integrally and a metallic layer formed by a metal material belt arranged on an outer side of the plastic layer in a spiral winding way. In the length direction of the data transmission cable, the data transmission cable has at least one bending portion, the data transmission cable is formed with a first section and a second section on both sides of the bending portion, and a stable bending angle is formed between the first section and the second section.

A flat data transmission cable includes a plurality of juxtaposed wires, a plastic layer enclosing on the wires integrally and a metallic layer formed by a metal material belt arranged on an outer side of the plastic layer in a spiral winding way, each wire has a conductor. The metallic layer has at least an aluminum foil layer and a bonding layer arranged on the side of the aluminum foil layer facing to the plastic layer, the metallic layer is bonded to the outer side of the plastic layer by the bonding layer.

A signal transmission cable includes: at least one conductor including at least one wire; a covering layer coating the at least one conductor, the covering layer being made of an insulator; a coating layer coating a periphery of the covering layer; and a plated layer coating the coating layer, the plated layer being made of a material including a metallic material.

An electrical cable includes a conductor assembly having a first conductor, a second conductor and an insulator surrounding the first conductor and the second conductor. The insulator has an outer surface. The conductor assembly extends along a longitudinal axis for a length of the electrical cable. The first conductor has a first core and a first conductive layer on the first core. The second conductor has a second core and a second conductive layer on the second core. The first and second cores are dielectric. The electrical cable includes a cable shield around the conductor assembly engaging the outer surface of the insulator and providing electrical shielding for the first and second conductors. The cable shield extends along the longitudinal axis.

A ribbon cable can include a plurality of spaced apart substantially parallel conductor sets. The conductor set includes a plurality of spaced apart substantially parallel conductors extending along a length of the conductor set and arranged along a width of the conductor set; first and second non-conductive structured layers disposed on opposite sides of and substantially coextensive with the plurality of conductors along the length and width of the conductor set; and a conductive shielding layer wrapped around the first and second non-conductive structured layers. Each structured layer is adhered to the conductors and includes a plurality of higher dielectric constant regions defining a plurality of lower dielectric constant regions therebetween.

A linear shape member is composed of a linear shape electrical insulating body comprising irregularities on a surface, and a plating layer coating the surface of the electrical insulating body. An average irregularities spacing Sm of the irregularities is not more than 20.0 m.