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:
May. 07, 2002
Filed:
Apr. 30, 1999
Yu-En Percy Chang, Mountain View, CA (US);
Jack Dana Cook, Washington, UT (US);
Cherngye Hwang, San Jose, CA (US);
Sanford J. Lewis, Palo Alto, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An air bearing slider embodiment of the present invention includes a body portion having an air bearing surface (ABS) side and a flexure surface side. The ABS side has at least one air bearing surface and at least one recessed area. A thin film composed of a compressive force material is deposited within the recessed area. The compressive force material produces an omnidirectional outward force within the recessed area that creates a positive crown and camber. Preferably, the thin film has a thickness range from 10 nm to 200 nm, and is composed of diamond-like carbon (DLC). An alternative air bearing slider includes a body portion with an ABS side and a flexure surface side. A thin film composed of a tensile force material is deposited upon said flexure side. The tensile force material creates an onmidirectional inward force on the flexure side which results in positive crown and camber. The manufacturing method for the improved sliders utilizes semiconductor processing techniques. The basic slider body is appropriately masked and etched to create the air bearing surfaces, air pressure surfaces and recessed area of the ABS side. Thereafter, the compressive material thin film is deposited within the recessed area. An improved manufacturing method utilizes the preexisting photomask of a prior art slider design, such that additional photomasking steps are not required to achieve the deposition of the compressive material thin film. Manufacturing of the tensile force material embodiment requires the step of depositing the film upon the flexure side.