| 摘要 |
PROBLEM TO BE SOLVED: To provide a novel high thermal-conductivity printed circuit board which can have an excellent thermal conductivity to quickly radiate heat on a circuit, can effectively reduce noise generated in the printed circuit board by forming a filter using a substrate, and can provide a sufficient function to the filter due to the excellent heat radiation performance of the substrate. SOLUTION: In a high thermal-conductivity printed circuit board 1, a plurality of conductive layers 12A, 12B are laminated on a carbon substrate 10 with insulating layers 11A, 11B laminated therebetween. A through-hole 13 is formed in the high thermal-conductivity printed circuit board 1. A filler material 14 containing carbon microcoils 141 mixed therein is buried in the through-hole 13 so that the plurality of conductive layers 12A, 12B are connected to each other and the filler material 14 is insulated from the inner peripheral surface 131 of the through-hole. COPYRIGHT: (C)2005,JPO&NCIPI |
