A second embodiment of a flat cable according to the invention might be explained under with reference to FIGS. So as to attain the above object, the invention supplies a flexible, shielded flat cable having a fundamental building which comprises a base movie, a plurality of strips of circuit conductor Juxtaposed on the base film, a strip of ground conductor arranged in parallel with the strips of circuit conductor, a cover layer movie connected to the strips of circuit conductor and ground conductor, and a shield tape of a conductive metal foil, made for example of aluminum, copper or the like, extending over the cowl layer film, the bottom conductor being conductively linked to the shield tape, whereby the cowl layer movie is of a double layered construction comprised of an higher cover layer film having an area provided with no upper layer film therein, and a lower cover layer film, and whereby the ground conductor is exposed, by way of the realm supplied with no upper layer film, to the shield tape so as to be linked with the shield tape. A pair of shield tapes 5 of a conductive metal foil are attached to the outer surfaces of the cowl layer movie four and base film, respectively, in order to shield the cable.

The flat cable of an internet-like configuration includes circuit conductors 1 of an online-like configuration Juxtaposed on a base film 3, and floor conductors 2 of an internet-like configuration disposed on the bottom film 3 in parallel relationship with the circuit conductors 1. The conductors 1, 2 are lined with a cover layer movie 4. A pair of shield tapes 5 of a conductive steel foil, made from aluminum, copper, for instance, are shieldingly hooked up to the cowl layer film 4, in order that the bottom conductors 2 and the shield tapes 5 are conductively linked. FIG. 1 is a perspective view illustrating the construction of a shielded flat cable in line with a first embodiment of the invention. A shielded flat cable in keeping with a second embodiment is characterized by a development wherein the lower cover layer movie of a predetermined measurement is placed over the bottom movie at a predetermined location thereof so as to electrically insulate the higher floor of the circuit conductors, the circuit conductors being offered within the upper surface of the base movie, the ground conductor is disposed on the lower cover layer movie, the bottom conductor being arranged in parallel with the circuit conductors, and the upper cowl layer movie is placed over the base film in an space together with the upper surfaces of the ground conductor and the lower cover layer film so as to form a cable body, wherein an space having no higher cowl layer movie is provided which extends alongside the intermediate portion of the lower cover layer movie and transversely of the cable body, wherein the shield tape is attached to the surface of the cable body including the world having no higher cover layer film so as to shield the cable body, and whereby the bottom conductor and the shield tape is conductively connected with each other by the area having no higher cowl layer film.

A shielded flat cable based on a first embodiment is characterized by a building wherein the lower cowl layer movie is placed over the bottom film supplied, in the higher floor thereof, with the circuit conductors juxtaposed thereon, the ground conductor is disposed on the decrease cowl layer film in parallel relationship with the circuit conductors, and the higher cowl layer film is placed over the decrease cowl layer movie and the higher surface of the ground conductor in order to kind a cable physique, wherein the cable body is provided, at predetermined areas thereof, with areas having no higher cover layer film which lengthen transversely of the cable physique, wherein the shield tape is positioned over the surface of the cable body together with the areas having no higher cowl layer movie in order to shield the cable physique, and wherein the ground conductor and the shield tape are conductively linked with each other via the areas having no higher cover layer movie. Several embodiments of a shielded flat cable based on the invention will probably be defined below with reference to FIGS.

For convenience of illustration, shielded flat cables in prior art shall be defined under with reference to FIGS. Thus, this kind of flat cable is disadvantageous, because it does not meet the requirement in the art in view of miniaturization and price financial savings of the flat cables. With the secondly mentioned shielded flat cable in prior art, the ground conductor, 2 uncovered exteriorly alongside the size thereof, may be directly linked to the shield tape 5. Thus, the "much less workability", "limitation in the house between the conductors", and "much less reliability in electrical connection", because of the presence of the connection windows 6, mentioned above may be eradicated. Thus, connection home windows in the prior artwork could also be obviated. The bottom conductor and the shield tape could also be electrically connected with each other via the area having no higher cover layer film, without the use of connection windows within the prior artwork. The invention additionally permits surface-to-surface contact between the bottom conductors and shield tape, so as to increase stability of efficiency in electrical connection and shielding ability. The performance in electrical connection between the bottom conductor and the shield tape is improved as a result of floor-to-floor contact therebetween.