| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a high-reliability printed wiring board having less warp and torsion, and its manufacturing method, wherein metal wirings are firmly stuck to a board, and are connected to conductive pastes filling in through holes electrically and mechanically stably. SOLUTION: This printed wiring board has a plurality of sheet boards consisting of an organic nonwoven fabric 100 of a density of 0.8g/cm<3> or more and resin formation layers 101 containing an inorganic insulating filter formed on its both sides, and two or more electrode layers 106. Through holes 103 are formed in the direction of thickness of the above-mentioned sheet board, and are filled up with conductive resin formations 104. And it has a multilayer interconnection construction having a construction wherein electrical connection is performed at every electrode layer.</p> |
