| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic circuit board which reinforces a return current passage on a printed board, and is provided with a method for suppressing a secondary effect expected to occur due to addition of a conductor component for the reinforcement. SOLUTION: The electronic circuit board has a wiring board carrying electronic components to compose an electronic circuitry. To suppress unnecessary electromagnetic radiation from the electronic circuit board, a conductor component 1a is mounted across integrated circuits 2, 3. Further, the conductor component 1a is connected to the conductor 21 of the integrated circuit 2 and to the conductor 31 of the integrated circuit 3 in high-frequency connection, using a capacity 22 generated between the conductor component 1a and the conductor 21 of the integrated circuit 2 and a capacity 32 generated between the conductor component 1a and the conductor 31 of the integrated circuit 3, to reinforce a return passage for a high-frequency current 41. To suppress a secondary effect expected to occur due to addition of the conductor component 1a; a control material 82, such as an insulator and a magnetic material, is interposed between the integrated circuits 2, 3 and the conductor component 1a mounted thereon to control the capacity. COPYRIGHT: (C)2007,JPO&INPIT
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