| 摘要 |
PROBLEM TO BE SOLVED: To provide a multilayer wiring substrate capable of adjusting capacitance even after manufacturing.SOLUTION: In a multilayer wiring substrate 1 whose capacitor is constituted of two planes provided across an insulating layer, a conductor part that connects either one via of a via 21 connected to one plane and a via 22 connected to the other one plane and a plane is removed by a back drill method. |
