Flexure with insulating layer isolating a portion of a metal substrate

A flexure supporting a head to read and write data, comprising:

• a metal substrate;
• an insulating layer formed on the metal substrate;
• a wiring pattern arranged on the insulating layer and having a first end connected to the head and a second end that is provided with a terminal for external connection;
• the insulating layer extending over a back of the terminal and a surrounding portion of the back;
• and
• the metal substrate having an isolated portion that is on the back of the terminal through the insulating layer and is separated and electrically isolated from the other portion of the metal substrate:
• and
• wherein the metal substrate has a substrate body, on a back surface of the insulating layer onto which the metal substrate is disposed, being positioned on one side of the isolated portion in a lateral direction crossing a longitudinal direction and a layer direction of the flexure, whereas the substrate body is not positioned on another side of the isolated portion in said lateral direction;
• wherein the substrate body that is positioned on said one side of the isolated portion extends in the longitudinal direction so as to cover a first edge of the insulating layer in said lateral direction from a back side and have a substrate edge facing the isolated portion in said lateral direction;
• wherein a second edge of the insulating layer opposite to the first edge in said lateral direction exposes to the outside from the back side;
• and
• wherein the isolated portion is interposed between the substrate edge of the substrate body and the second edge of the insulating layer in said lateral direction.