CPC H05K 1/0281 (2013.01) [G06F 1/1652 (2013.01); H05K 1/189 (2013.01); H05K 2201/10128 (2013.01)] | 20 Claims |
1. A flexible printed circuit board, comprising:
a base film;
a circuit pattern disposed on one surface of the base film; and
a coverlay film covering the circuit pattern,
wherein the base film is divided into a flexible area and a rigid area,
the circuit pattern of the flexible area comprises a portion thinner than a portion of the circuit pattern of the rigid area,
the circuit pattern of the flexible area includes a plurality of grooves spaced apart from one another at regular intervals, such that the coverlay film disposed on the circuit pattern of the flexible area has a plurality of stepped portions on one surface of the coverlay film, and
one of the plurality of grooves is formed in only a part of the circuit pattern of the flexible area in a thickness direction of the circuit pattern.
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