Patent ID: 7929247
Filing Date: 2011-04-19
Classification: G11B

Abstract:
1. A magnetic disk drive which is a sealed magnetic disk drive including a base in which a disk, a spindle motor rotating and driving the disk, a head recording and reproducing information on the disk and an actuator assembly for moving the head in a radius direction on the disk, and a cover to be joined to the base, and low-density gas is sealed in a space between the base and the cover which are joined, wherein a sidewall of the base includes a flange inside, and the cover comprises a metal plate, an adhesive having a surface wider than the metal plate, which adheres to an upper surface of the metal surface, a seal member having a surface wider than the adhesive, which adheres to an upper surface of the adhesive and a solder coated or printed at an outer periphery of the seal member; and wherein the metal plate is pressed to the flange and the outer periphery of the seal member is joined to an upper surface of the sidewall of the base by the solder at the outside of the adhesive by the adhesive of the cover being affixed to the upper surface of the sidewall of the base.