Patent ID: 8758910
Filing Date: 2014-06-24
Classification: G11B,H05K,Y10T

Abstract:
1. A substrate for suspension comprising a metal supporting substrate, an insulating layer formed on the metal supporting substrate, a wiring layer formed on the insulating layer, and a cover layer formed to cover the wiring layer, wherein the substrate for suspension comprises a first structural part including the metal supporting substrate, the insulating layer, the wiring layer, and the cover layer, and a second structural part formed so as to extend continuously from the first structural part and obtained by removing only the metal supporting substrate from the first structural part, wherein a position of an edge of an upper surface of the insulating layer is positioned on a side closer to the wiring layer than to an edge of a lower surface of the cover layer at a boundary region between the first structural part and the second structural part, such that said cover layer extends beyond said edge of the upper surface of said insulating layer, and wherein said cover layer does not contact said metal supporting substrate in at least said boundary region.