Material deposition on transducing head

US8139323B2 · kind B2 · utility

Assignee

• Seagate Technology LLC · US

Inventors

• Marsha A. Huha · Minneapolis, US
• Ki Myung Lee · Suwon-si, KR
• Anil J. Reddy · Minneapolis, US
• Ying Dong · Eden Prairie, US
• Gary J. Kunkel · Minneapolis, US
• Matthew Aaron Carper · Bloomington, US
• Andrew Frenz · Minneapolis, US
• John L. Brand · Wauconda, US
• Quinn Haddock · Longmont, US

Key dates

• Filing date: Feb 5, 2010
• Grant date: Mar 20, 2012
• Expiry date: Feb 12, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/1179
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

An apparatus includes a slider body having a leading edge and an opposite trailing edge, as well as a top face and a bottom face each extending between the leading edge and the trailing edge. The slider body further includes a plurality of protrusions extending from the bottom face, a first recess defined on one of the protrusions, and a sacrificial layer deposited on the slider body in the recess. A bottom surface of the sacrificial layer extends at least as far from the bottom face as bottom surfaces of the plurality of protrusions. In another aspect, a first blocking feature is located at a first uptrack edge on an air bearing surface of a slider, with the first blocking feature being substantially continuous along the first uptrack edge and protruding outwardly from the air bearing surface to reduce particle interaction with the air bearing surface.