Suspension board with circuit

A suspension board with circuit, comprising:

• a metal supporting layer;
• an insulating base layer disposed on a surface of the metal supporting layer located on one side thereof in a thickness direction;
• a conductive pattern disposed on a surface of the insulating base layer located on one side thereof in the thickness direction;
• an insulating cover layer disposed on the surface of the insulating base layer located on the one side thereof in the thickness direction so as to cover the conductive pattern;
• and
• a pedestal for supporting a slider, the pedestal including a thin pedestal portion, wherein
• the thin pedestal portion includes:
• a pedestal base layer included in the insulating base layer;
• a pedestal conductive layer included in the conductive pattern and disposed so as to extend over the pedestal base layer;
• and
• a pedestal cover layer included in the insulating cover layer and disposed on the pedestal conductive layer,
• the conductive pattern includes a first wire placed so as to extend over the insulating base layer,
• the first wire has a narrower portion where a dimension in a wire width dimension perpendicular to a direction in which the first wire extends is smallest, and
• a dimension of the pedestal conductive layer in a pedestal width direction perpendicular to a direction in which the pedestal conductive layer extends is 0.5 to 3 times the dimension of the narrower portion in the wire width direction.