The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 04, 2011
Filed:
Nov. 20, 2008
Applicants:
Hiroyuki Suzuki, Kanagawa, JP;
Yoshio Uematsu, Kanagawa, JP;
Inventors:
Hiroyuki Suzuki, Kanagawa, JP;
Yoshio Uematsu, Kanagawa, JP;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/48 (2006.01);
U.S. Cl.
CPC ...
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 the γ 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.