Patent ID: 7566833

Claim:
A wired circuit board comprising: a metal supporting board, an insulating base layer formed on the metal supporting board, a conductive pattern formed on the insulating base layer, a semi-conductive layer which is formed on the insulating base layer exposed from the conductive pattern and at least a part of which contacts with the metal supporting board and the conductive pattern, an insulating cover layer, formed on the semi-conductive layer formed on the insulating base layer, to cover the conductive pattern, and a terminal portion formed by the conductive pattern exposed from an opening formed in the insulating cover layer, wherein static electricity is removed from the insulating base layer, the insulating cover layer and the terminal portion of the conductive pattern via the semi-conductive layer, wherein the insulating base layer is made of a polyimide resin, wherein the semi-conductive layer is a metal oxide layer having a thickness in the range of 10-100 nm, and wherein the semi-conductive layer formed on the insulating base layer is covered with the insulating cover layer, whereby the semi-conductive layer is prevented from being stripped.