Patent ID: 9271391
Filing Date: 2016-02-23
CPC Classification: H01R,H05K

Claim Text:
1. A multilayer wiring board to which a coaxial structure for transmitting an electric signal with a center conductor and an outer conductor is connected, the multilayer wiring board comprising: a first dielectric layer; a high-frequency signal line formed on a first surface of the first dielectric layer, the high-frequency signal line having a connecting portion that is electrically connectable to the center conductor of the coaxial structure; a ground layer formed on a second surface of the first dielectric layer; and a second dielectric layer covering part of the ground layer, the second dielectric layer having an edge spaced from an edge of the first dielectric layer that faces with the coaxial structure when the coaxial structure is connected to the multilayer wiring board, the edge of the second dielectric layer being located at an inner side of the multilaver wiring board than the edge of the first dielectric layer, thereby exposing a ground exposure portion of the ground layer-en between the edge of the first dielectric layer and the edge of the second dielectric layer, the ground layer being electrically connectable directly to the outer conductor of the coaxial structure at the ground exposure portion, wherein the high-frequency signal line is exposed to an outside of the multilayer wiring board near the connecting portion thereof when the coaxial structure is connected to the multilayer wiring board.