PROBLEM TO BE SOLVED: To make addition of excessive member for the countermeasure of disconnection unnecessary, and to prevent the breakage of an electrode pattern upon bending with high reliability.;SOLUTION: A wiring pattern formed of copper foil 105 of the rear surface side is electrically connected to a front surface side non electrolysis gold plating layer 104 through a through-hole 110, and, further, is electrically connected to the mounting land unit 206 of a main substrate 200. A rear surface side cover layer 109 is provided in a region inside of the rear surface side non-electrolysis gold plating layer 107. When the flexible substrate 100 is bent, the same is bent at the position of boundary Q of a mounting land 111 substantially. The wiring pattern is formed of the rear surface side copper foil 105 covered by the rear surface side cover layer 109 whereby the wiring pattern will not be disconnected thereby permitting the securing of reliability for bending.;COPYRIGHT: (C)2007,JPO&INPIT
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