Patent ID: 8120872

Claim:
A spindle motor comprising: a stator portion; and a rotor portion supported in a rotatable manner around a vertically extending center axis with respect to the stator portion, wherein the stator portion includes: a substantially cup-shaped base member including a bottom portion extending in a radial direction, a wall portion extending upwards from an outer edge portion of the bottom portion, an outer flat portion extending outwardly in the radial direction from an upper end portion of the wall portion, and a through hole arranged axially through the bottom portion; a coil accommodated in the base member; a circuit board arranged at a lower surface of a wall portion or a lower surface of the outer flat portion, and electrically connected to the coil; and an insulating layer arranged to cover a lower surface of the bottom portion and an opening edge portion at the lower side of the through hole of the bottom portion; and a conducting wire extending from the coil is arranged through the through hole and along a surface of the insulating layer, and connected to the circuit board.