Patent ID: 7908739

Claim:
A method of manufacturing a motor assembly for a data storage drive device, the method comprising the steps of: providing a motor assembly including a motor placing portion and an access unit placing portion, the motor placing portion including at least a portion of a base of the motor assembly which includes a plate-shaped flat portion and a motor to spin a data storage disk centered about a center axis on a disk placing portion of the motor, and the access unit placing portion including a portion of the base of the motor assembly which includes a plate-shaped flat portion and an access unit to read and/or write information on the data storage disk; measuring a positional relationship between a first datum point and a second datum point; and applying heat to a target area of the motor assembly such that at least a part of a displacement portion is displaced toward a direction from which the heat is applied such that the positional relationship between the first datum point and the second datum point is adjusted; wherein the first datum point is arranged at a portion of the motor placing portion that corresponds to a location of the disk placing portion; and the second datum point is arranged on the base of the motor assembly.