WIRING STRUCTURE AND MANUFACTURING METHOD OF THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a wiring structure that has excellent connection reliability while achieving high-speed signal transmission supporting, for example, a frequency domain of several tens GHz, and has excellent signal transmission characteristics without a stub structure and land.SOLUTION: A wiring structure has a first insulating layer 12, a second insulating layer 13 formed on the first insulating layer 12, a wiring 14 formed on the first insulating layer 12, and a connection part 16 connected to the wiring 14. The material of the second insulating layer 13 has a larger ablation speed by the irradiation of a laser beam than the material of the first insulating layer 12, and a larger ablation speed by the irradiation of a laser beam than the material of the wiring 14.