Patent ID: 9445493
Filing Date: 2016-09-13
CPC Classification: H05K,Y10T

Claim Text:
1. A signal line comprising: a laminated body including a plurality of insulator layers that include flexible material and are laminated on one another; and a first ground conductor; a signal conductor; and a second ground conductor; wherein each of the first ground conductor, the signal conductor, and the second ground conductor is provided in a different layer of the laminated body from one another; the first ground conductor, the signal conductor, and the second ground conductor define a stripline structure in which the signal conductor is located between the first ground conductor and the second ground conductor; the second ground conductor overlaps with the signal conductor in a planar view in a lamination direction of the laminated body; the first ground conductor includes a first ground conductor portion and a second ground conductor portion and a slit is disposed between the first ground conductor portion and the second ground conductor portion of the first ground conductor, and at least a portion of the slit overlaps with the signal conductor in the planar view in the lamination direction of the laminated body; the first ground conductor includes a first surface and a second surface opposing the first surface, the first surface being closer to the signal conductor than the second surface, and the first surface has a surface roughness larger than the second surface; and the laminated body is bent so that the second ground conductor is located on an inner periphery side as compared to a location of the first ground conductor.