WIRING BOARD EMPLOYING ARRANGED CONDUCTORS

A flexible wiring board, where a wire rod formed of a conventional conductor and a thread-like material are stitched into a film-like substrate and wiring is formed of the wire rod, is formed of an insulating thread-like material more flexible than the wire rod, and can be stitched into a film-like substrate easily, whereby the wire rod is not broken easily. The flexible wiring board poses difficulties because it requires a large number of production steps due to indispensable stitching into a film-like substrate. The problem is solved by a wiring board which uses such a method that a photosensitive agent of an insulator (2) is exposed to and developed on conductors (1) arranged in parallel, an opening (3) for external conductive connection is formed, and then a wiring pattern is formed.