Spindle motor including magnetic member and disk drive apparatus including same

A disk drive apparatus comprising:

• a spindle motor including:
• a stationary portion;
• and
• a rotating portion arranged to rotate with respect to the stationary portion;
• an access portion arranged to perform at least one of reading and writing of information from or to a disk held by the rotating portion of the spindle motor;
• and
• a housing arranged to contain the spindle motor and the access portion;
• wherein
• the rotating portion includes a magnet arranged around a central axis extending in a vertical direction;
• the stationary portion includes:
• a base member;
• and
• a magnetic member arranged below the magnet in the vertical direction and fixed to the base member;
• the base member includes:
• an upper surface extending out perpendicularly or substantially perpendicularly to the central axis;
• and
• a wall surface extending in an axial direction;
• the magnetic member includes:
• an annular plate portion arranged on the upper surface of the base member;
• and
• a projecting portion arranged to extend downward in the vertical direction from the plate portion;
• at least a portion of the projecting portion is in contact with the wall surface;
• and
• the stationary portion further includes an adhesive arranged between the plate portion and the upper surface of the base member and between the projecting portion and the wall surface.