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US 2009/0213498 A1Published application
Disk drive device
AssigneeHitachi Global Storage Technologies Netherlands B.V.
InventorsHiroyuki Suzuki, Yoshio Uematsu
Life of this patent
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Abstract
Embodiments of the present invention provide a highly reliable hard disk drive (HDD). In an HDD according to an embodiment of the present invention, solder at a solder joint for joining a pad of a head slider and a pad of a transmission wiring comprises the main component of Sn and atomic percent to atomic percent of indium. The solder exhibits they phase within the range of −150° C. to 120° C. Accordingly, even if the HDD is left at a low temperature for a long time, the solder joint is not broken.
Claims14
A disk drive device comprising:
- a head for accessing a disk;
- an actuator for supporting the head to move the head above the disk;
- transmission wiring disposed on the actuator for transmitting signals of the head;
- and
- solder for connecting the transmission wiring on the actuator and comprising a first main component of tin and a second main component of indium, a crystal structure formed by the first main component of tin and the second main component of indium being a simple hexagonal structure at least within a temperature range of−40° C. to 90° C.
2 more elements
A disk drive device comprising:
- a head for accessing a disk;
- an actuator for supporting the head to move the head above the disk;
- transmission wiring disposed on the actuator for transmitting signals of the head;
- and
- solder containing a main component of tin and 15 atomic percent to 27 atomic percent of indium for connecting the transmission wiring on the actuator.
2 more elements
Dependencies are inferred from the claim text.