| 摘要 |
PCT No. PCT/JP97/00179 Sec. 371 Date Oct. 2, 1997 Sec. 102(e) Date Oct. 2, 1997 PCT Filed Jan. 28, 1997 PCT Pub. No. WO97/29621 PCT Pub. Date Aug. 14, 1997A printed-circuit board (10) is provided with a main printed-wiring board (12) having a first conductor pattern (16), and first electronic components (18) mounted on the main printed-wiring board and electrically connected to the first conductor pattern. Component units (22) are mounted on the main printed-wiring board. Each of the component units includes an auxiliary printed-wiring board (24) having a second conductor pattern (28), and a second electronic component (32) mounted on the auxiliary printed-wiring board and electrically connected to the second conductor pattern. Each component unit is mounted on the main printed-wiring board, covering one first electronic component (18). Each second conductor pattern is electrically connected to the first conductor pattern.
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