Patent ID: 8593759

Claim:
A spindle motor, comprising: a stationary unit; and a rotary unit supported to rotate about a center axis extending up-and-down; wherein the stationary unit includes a base member, an armature provided with a plurality of coils and positioned above the base member, and a circuit substrate arranged on a lower surface of the base member and electrically connected to the coils; the rotary unit includes a magnet arranged to generate torque between the magnet and the armature; the base member includes an annular or a substantially annular bottom portion positioned below the armature, base through-holes axially extending through the bottom portion, and a lower slant surface extending radially outward and upward from an outer peripheral portion of a lower surface of the bottom portion; the circuit substrate includes a first substrate piece and a second substrate piece arranged in a circumferentially spaced-apart relationship with the first substrate piece; each of the first substrate piece and the second substrate piece includes at least one land portion arranged on a lower surface thereof; each of the first substrate piece and the second substrate piece is at least partially arranged on the lower slant surface; and a plurality of lead wires extending from the coils is led out toward a lower surface of the circuit substrate through the base through-holes and is fixed to the respective land portions.