| 摘要 |
A transmission/reception optical module has an optical transmission subassembly 182 , an optical reception subassembly 183 , and a circuit board 1 wherein the circuit board 1 is formed into one member by a rigid/flexible substrate. Circuit board main bodies 2 a, 2 b, and an optical reception subassembly fixation region 4 are formed by rigid regions 5 A, 5 b, and 5 P. An area provided between the circuit board main body 2 a and the optical reception subassembly 4 is composed of a flexible region 6 P. A part of the circuit board main body 2 is composed of a flexible region 6.
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