Article: California Inventors Develop Hard Disk Drive Contact Potential Determining System

ALEXANDRIA, Va., Jan. 24 -- Peter Michael Baumgart, Bernhard E. Knigge and Charles Mathew Mate, all from San Jose, Calif., have developed a hard disk drive.

According to the U.S. Patent & Trademark Office, the invention relates to a "method and system for determining contact potential voltages between a slider body and a hard disk of a hard disk drive. In embodiments of the present invention, at least one continuous negative direct current (DC) voltage is applied between a slider body and a hard disk of a hard disk drive. Then, at least one continuous positive DC voltage is applied between the slider body and the hard disk. A contact potential voltage between the slider body and the ...

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