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:
Jan. 14, 2014
Filed:
Jun. 13, 2012
Aravind N. Murthy, San Jose, CA (US);
Remmelt Pit, Menlo Park, CA (US);
Karl Arthur Flechsig, Los Gatos, CA (US);
Aravind N. Murthy, San Jose, CA (US);
Remmelt Pit, Menlo Park, CA (US);
Karl Arthur Flechsig, Los Gatos, CA (US);
HGST Netherlands B.V., Amsterdam, NL;
Abstract
Approaches are provided for a hard-disk drive (HDD) and a method for measuring the contact potential between head and disk interfaces within a hard-disk drive. In one example, a voltage bias is applied to a head slider at discrete increments, and the touchdown power is determined at each increment. The voltage bias at which the TDP maximizes equals the inverse polarity of the inherent contact potential between the head slider and disk, and this value may be used to apply a voltage that neutralizes the contact potential.