| 摘要 |
PROBLEM TO BE SOLVED: To provide a double-sided FPC (flexible printed circuit) capable of improving durability to bend and permitting high-density mounting by reducing the mounting area. SOLUTION: This is a double-sided flexible printed circuit board provided with a base film and copper foil that is formed on both sides of it. This double- sided flexible printed circuit board has a part-mounting part where parts are mounted and a bent part that requires flexibility to bend. At the part-mounting part, conduction between copper foils 11 and 12 that are formed on both sides of the base film 1 is obtained by a BVH. Then, the copper foil 11 on the side that is opened is removed by the BVH at the bent part. The copper foil at the opening part of the BVH of the copper foil on both sides of the base film is removed, so as to have the copper foil 11 only on one side of the base film 1. Thus, the flexibility to bend can be improved. COPYRIGHT: (C)2003,JPO
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