Patent ID: 7872836
Filing Date: 2011-01-18
Classification: G11B

Abstract:
1. A disk drive device comprising: a disk; a motor for rotating the disk; a head for accessing the disk; a moving mechanism for supporting and moving the head; a base for housing the disk, the motor, the head and the moving mechanism; a cover joined to the base; and gas which has lower density than air sealed within an interior space which is formed by joining the base and the cover; wherein: the disk drive further comprises a feedthrough which is solder-jointed to the base to cover an opening penetrating the base to join an outside of the device and the interior space and is connected electrically to a wiring arranged in the interior space; the base has a mounting surface on which the feedthrough is mounted around the opening; the feedthrough includes a flange whose outline is larger than the opening and pins which are fixed to the flange and are electrically connected to the wiring; a rim part of the flange is solder-jointed to the mounting surface; and the solder-jointed mounting surface has a first part and a second part whose width is larger than the one of the first part, and thermal stress at the solder joint section of the second part is larger than the one of the first part.