Patent ID: 8692125
Filing Date: 2014-04-08
Classification: H05K

Abstract:
1. A multilayer substrate comprising: a main body including a plurality of insulating sheets to be stacked and made of a flexible material; a signal wire disposed in the main body; a first ground conductor that is provided at one side of the signal wire in a stacking direction in the main body, such that the first ground conductor overlaps the signal wire in a plan view seen from the stacking direction; and a second ground conductor that is provided at the other side of the signal wire in the stacking direction in the main body, such that the second ground conductor overlaps the signal wire in the plan view seen from the stacking direction; wherein the main body including the signal wire retains a curved state by plastic deformation of the first and second ground conductors; and the main body is curved to project toward the other side in the stacking direction, and the first ground conductor is sandwiched between the insulating sheets in the stacking direction, and attached more weakly to the insulating sheet lying on the one side in the stacking direction than to the insulating sheet lying on the other side in the stacking direction.