Patent ID: 9166452
Filing Date: 2015-10-20
Classification: G11B,H02K

Abstract:
1. A spindle motor comprising: a stationary portion; and a rotary portion including a magnet, the rotary portion being configured to rotate about a center axis extending in an up and down direction; wherein the stationary portion includes a base portion, a stator including a plurality of coils and positioned above the base portion, and a circuit substrate disposed in the base portion; the base portion includes a flat plate portion positioned below the rotary portion and extending radially outward with respect to the center axis, and at least one through-hole extending from an upper surface to a lower surface of the flat plate portion; the flat plate portion includes a first surface positioned between the upper surface and the lower surface of the flat plate portion and disposed within the through-hole; the circuit substrate includes a land portion to which at least one lead wire extending from the plurality of coils is electrically connected; the land portion is disposed on the first surface; and the lead wire is connected to the land portion by solder within the through-hole.