The cable body 8 features a connection half 7 through which the ground conductors 2 are to be conductively linked with the shield tape 5. Specifically, the connection half 7 could also be decided as an space of a predetermined width extending transversely of the cable body 8 during which no upper cowl layer movie 4A is supplied, as shown in FIG. 3C. The shield tapes 5, 5 are connected to the higher surface, including the area of the connection half 7, and the lower surface of the cable physique 8, respectively. More particularly, and as proven in FIG. 6A, the lower cowl layer film 4B of a predetermined size is supplied at an intermediate portion of the base movie three (corresponding to the connection part in the primary embodiment by means of which the bottom conductors 2 are conductively connected with the shield tape 5). The lower cowl layer film 4B extends over the circuit conductors 1 so as to electrically insulate the upper surface of the circuit conductors. A plurality of circuit conductors i are disposed on the bottom film 3 in a juxtaposed vogue (FIG. 3A). The decrease cover layer film 4B is adhered onto the circuit conductors 1 (FIG. 3B). The bottom conductors 2 are disposed on the lower cowl layer movie 4B, so that the ground conductors 2 extend in parallel with the circuit conductors and appear alternatively with the circuit conductors 1 (FIG. 2B). The upper cover layer movie 4A is adhered onto the floor of the decrease cover movie 4B and the higher surface of the bottom conductors (FIG. 3C). Thus, the base movie three and cover layer movies 4A, 4B represent a cable physique eight during which the circuit conductors 1 and the bottom conductors 2 are encased.
It is usually doable to arrange the circuit conductors and the ground conductor(s) in alternate style relative to each other. For example, the ground conductors 2 and the circuit conductors 1 could also be organized in an acceptable manner apart from the alternate arrangement point out above. A cover layer film 4 is adhesively attached to the bottom movie three in order that it covers the circuit conductors 1, but not the bottom conductor 2. A pair of shield tapes 5 are adhesively related to the cover layer movie 4 and base movie 3 for the aim of shielding. The cable physique 8, as in the first embodiment, is provided, at the higher and lower surface thereof, with shield tapes 5 for shielding the cable body eight in its entirety. The area having no upper cover layer movie, as in the case of the primary embodiment, constitutes a connection portion. A shielded flat cable according to a first embodiment is characterized by a development whereby the lower cowl layer film is placed over the base film provided, within the higher surface thereof, with the circuit conductors juxtaposed thereon, the bottom conductor is disposed on the decrease cowl layer film in parallel relationship with the circuit conductors, and the upper cover layer film is positioned over the decrease cowl layer movie and the higher surface of the bottom conductor so as to kind a cable physique, wherein the cable physique is provided, at predetermined locations thereof, with areas having no higher cowl layer movie which prolong transversely of the cable body, wherein the shield tape is positioned over the floor of the cable body including the areas having no higher cowl layer film in order to shield the cable physique, and wherein the ground conductor and the shield tape are conductively linked with each other through the areas having no upper cover layer film.
9 and 10, a plurality of circuit conductors 1 juxtaposed on a base film 3, and a ground conductor 2 disposed on one side of the circuit conductors in parallel relationship with the circuit conductors. The flat cable of a web-like configuration consists of circuit conductors 1 of an internet-like configuration Juxtaposed on a base film 3, and floor conductors 2 of a web-like configuration disposed on the base film three in parallel relationship with the circuit conductors 1. The conductors 1, 2 are covered with a cover layer film 4. A pair of shield tapes 5 of a conductive metallic foil, manufactured from aluminum, copper, for example, are shieldingly hooked up to the cowl layer film 4, so that the bottom conductors 2 and the shield tapes 5 are conductively related. Thus, the cable body eight is shielded by the use of the shield tapes 5, 5 in its entirety. A pair of shield tapes 5 of a conductive metal foil are connected to the outer surfaces of the cover layer movie four and base film, respectively, in order to shield the cable. An area having no higher cowl layer movie is offered. The bottom conductor and the shield tape serving as a floor layer of the flat cable is electrically related with one another by the area having no upper cowl layer film.
A shielded flat cable based on a second embodiment is characterized by a development wherein the lower cowl layer film of a predetermined measurement is positioned over the bottom film at a predetermined location thereof in order to electrically insulate the upper floor of the circuit conductors, the circuit conductors being offered within the upper floor of the base film, the ground conductor is disposed on the decrease cover layer movie, the bottom conductor being organized in parallel with the circuit conductors, and the higher cowl layer film is positioned over the base movie in an area including the higher surfaces of the bottom conductor and the lower cover layer movie so as to type a cable body, wherein an area having no higher cowl layer film is offered which extends alongside the intermediate portion of the lower cover layer film and transversely of the cable body, wherein the shield tape is connected to the surface of the cable body together with the area having no upper cowl layer film so as to shield the cable body, and wherein the ground conductor and the shield tape is conductively connected with one another by the world having no higher cover layer film.