| CPC H05K 1/181 (2013.01) [G01K 1/14 (2013.01); H05K 1/189 (2013.01); H05K 2201/10151 (2013.01)] | 21 Claims |

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1. A sensor, comprising:
a printed circuit board having a first region and a second region linked together by a flexible linking portion, a free end portion of the first region opposite the flexible linking portion is movable with respect to the second region, the first region has a first protruding region in a plane of the printed circuit board that protrudes away from the second region, the flexible linking portion is part of the printed circuit board.
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