Patent ID: 8071884

Claim:
A flexible printed circuit board comprising: a base comprising a first base portion, a second base portion connecting with one end of the first base portion, and a gold finger portion connecting with another end of the first base portion, a thickness of the first base portion being larger than a thickness of the second base portion, the second base portion being bendable relative to the first base portion, the second base portion having a first part and a second exposed part, the gold finger portion having a third part and a fourth exposed part; and a coverlay formed on the first base portion and covering the first base portion, the first part of the second base portion and the third part of the gold finger portion, the second exposed part and the fourth exposed part being uncovered by the coverlay, the coverlay comprising a first curved edge serving as an interface between the first part and the second exposed part of the second base portion, and a second curved edge serving as an interface between the third part and the fourth exposed part of the gold finger portion.