| 摘要 |
PURPOSE:To absorb noise and to prevent interference with a second circuit block by providing a conductive path near a second circuit between a first circuit to become a noise generation source and the second circuit to become a noise receiving side, and electrically connecting a plurality of loops of metal wire to the path. CONSTITUTION:A block of a first circuit 17 is formed at the left side of a conductive path 16 as a boundary, an electric circuit element for generating noise is assembled, and noise is emitted externally from the element, the path. A block of a second circuit 18 is formed at a right side to easily cause a circuit error operation upon receiving of the noise and to originally need its shield. Metal wire 19 bonded on the path 16 formed between the circuits 17 and 18 are formed in a circular arc smaller than 1/2 of a wavelength of the noise arriving thereat and a circle having a diameter smaller than the 1/2, thereby absorbing the noise larger than the wavelength. |
