| 摘要 |
PROBLEM TO BE SOLVED: To provide a substrate for suspension having a low transmission loss of an electric signal and a reduced differential impedance.SOLUTION: The substrate for suspension comprises: a metal support substrate; an insulator layer formed on the metal support substrate; and a wiring line pair which is formed on the insulator layer and is composed of a first wiring line and a second wiring line. On the planar view, the metal support substrate has a opening region under the wiring line pair, and in the opening region, a conductor layer having a conductivity higher than that of the metal support substrate is formed on the insulator layer at the side of the metal support substrate so as to overlap with at least one part of the first wiring line or the second wiring line in the plane view on the planar view. |
