Head gimbal assembly and magnetic disk drive with specific...

Details Head gimbal assembly and magnetic disk drive with specific... Head gimbal assembly and magnetic disk drive with specific...

2008-07-15

2008-07-15

Heinz, A. J. (Department: 2627)

Dynamic magnetic information storage or retrieval

Fluid bearing head support

Disk record

Reexamination Certificate

active

11112719

ABSTRACT:
Embodiments of the invention provide a head gimbal assembly (HGA) capable of effecting solder ball connection with use of low energy. In one embodiment, the HGA includes a head/slider. In the head/slider, slider pads and lead wire pads are connected to each other by reflow of solder balls under the radiation of a laser beam. Lead layers are connected to a magnetic head and electrode studs are connected to the lead layers, respectively, and are also connected to the slider pads. The diameter R (m) of a solder ball and a sectional area S (m2) of an electrode stud are in a relation of R2≧4S.

REFERENCES:
patent: 6330132 (2001-12-01), Honda
patent: 6657134 (2003-12-01), Spielberger et al.
patent: 6821814 (2004-11-01), LaFontaine et al.
patent: 7122897 (2006-10-01), Aiba et al.
patent: 2002/0000651 (2002-01-01), Takizawa et al.
patent: 10-079105 (1998-03-01), None

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