| 摘要 |
PROBLEM TO BE SOLVED: To improve reliability in mounting of a wiring board whose side surface is a mounting surface. SOLUTION: A plurality of wiring boards 102 are arranged in a line. A pair of split grooves 107 are formed to sandwich the plurality of wiring boards 102 along the outer edges of the plurality of wiring boards 102, in the array direction of the plurality of wiring boards 102. A slit 103 is so provided between a plurality of wiring boards 102 that the side surfaces mounting the plurality of wiring boards 102 are exposed. COPYRIGHT: (C)2007,JPO&INPIT
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