| 摘要 |
A printed circuit board is provided to realize various designs of the portable electrical appliance by including a connection unit and a signal pattern unit. In a printed circuit board(200) of the portable electrical appliance, a connection part, between a main board and a sub-board, makes them at the same plane(203). A signal pattern unit(204), between the main board and sub-board, provides the transmission path of the generated signal from one side of them.
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