Suspension board with circuit

A suspension board with circuit including a supporting portion configured to support a slider and extending in a predetermined direction comprising:

• a metal supporting layer,
• a base insulating layer disposed at one surface in a thickness direction of the metal supporting layer,
• a conductive pattern disposed at one surface in the thickness direction of the base insulating layer,
• a cover insulating layer disposed at the one surface in the thickness direction of the base insulating layer so as to cover the conductive pattern, and
• a supporting layer disposed at one surface in the thickness direction of the cover insulating layer, wherein
• the supporting portion includes at least one pair of pedestals disposed at spaced intervals to each other in the predetermined direction;
• each of the one pair of pedestals includes a pedestal base layer included in the base insulating layer,
• a pedestal conductive layer included in the conductive pattern and disposed at one surface in the thickness direction of the pedestal base layer,
• a pedestal cover layer included in the cover insulating layer and disposed at one surface in the thickness direction of the pedestal conductive layer, and
• a pedestal supporting layer included in the supporting layer and disposed at one surface in the thickness direction of the pedestal cover layer;
• of the one pair of pedestals, the pedestal conductive layer of one pedestal has
• a fan portion in which at least a part of the circumferential end portion thereof has a circular arc shape and
• a continuous portion continuous from the fan portion in a circumferential direction thereof and having a protruding portion protruding outwardly in a radial direction of a phantom circle with respect to the phantom circle sharing the center with the fan portion;
• and
• of the one pair of pedestals, the pedestal conductive layer of the other pedestal has at least the fan portion and
• when the pedestal conductive layer of the other pedestal has only the fan portion,
• the pedestal supporting layer is disposed so as to be overlapped with the fan portion in the thickness direction in each of the one pair of pedestals and so as not to be overlapped with the continuous portion in the thickness direction in the one pedestal and
• when the pedestal conductive layer of the other pedestal further has the continuous portion,
• the pedestal supporting layer is disposed so as to be overlapped with the continuous portion or is disposed so as to be overlapped with the fan portion and so as not to be overlapped with the continuous portion in the thickness direction in each of the one pair of pedestals.