Browse Prior Art Database

Hard Disk Drive Manufacturing Method for High Head/Disk Interface Reliability

IP.com Disclosure Number: IPCOM000117095D
Original Publication Date: 1995-Dec-01
Included in the Prior Art Database: 2005-Mar-31
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Aoki, T: AUTHOR [+4]

Abstract

Disclosed is a Hard Disk Drive Head manufacturing method for high Head/Disk interface reliability. Current Hard disk drives have very low fly height of a head. With a temperature change or the other reasons, a head can contact or clash the disk surface. Current head components use some different material combinations, and some portion of the head component protrudes with temperature change causing the protruding portion to hit the disk surface.

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Hard Disk Drive Manufacturing Method for High Head/Disk Interface Reliability

Disclosed is a Hard Disk Drive Head manufacturing method for high Head/Disk interface reliability. Current Hard disk drives have very low fly height of a head. With a temperature change or the other reasons, a head can contact or clash the disk surface. Current head components use some different material combinations, and some portion of the head component protrudes with temperature change causing the protruding portion to hit the disk surface.

This article discloses a method to remove the harmful head protruding area on the trailing edge. The method is realized by the execution of scrubbing the head on the disk Contact Start Stop (CSS) region. CSS or dragging is executed by heating the head during a rise in temperature or by supplying an electrical current for a write operation to the head. The head component is heated by this electrical current and the protrusion can be easily effected. Then by scrubbing on the disk, this protruding portion can be removed.

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