Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1995-01-30
1996-05-07
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
G11B 2121
Patent
active
055152198
ABSTRACT:
The present invention is a subambient pressure air bearing slider having a slider body with a leading edge, a trailing edge and first and second side edges. First and second side rails are positioned along the first and second side edges, respectively, with each side rail defining an air bearing surface. The cavity dam extends between the first and second side rails and is recessed from the bearing surfaces. A subambient pressure cavity extends between the first and second side rails adjacent the cavity dam. The leading edge taper is formed along the leading edge and has a surface extending from the leading edge to an intersection with the air bearing surfaces of the first and second side rails. First and second side walls are formed within the leading edge taper between the first and second side edges. The first and second side walls converge towards the leading edge from the intersection of the bearing surfaces and the leading edge taper. As a result, the flying characteristics of the slider are less sensitive to process variations which vary in height of the cavity dam.
REFERENCES:
patent: 3855625 (1974-12-01), Garnier et al.
patent: 4212044 (1980-07-01), Plotto
patent: 4225891 (1980-09-01), Plotto
patent: 4420780 (1983-12-01), Deckert
patent: 4475135 (1984-10-01), Warner et al.
patent: 4673996 (1987-06-01), White
patent: 5062017 (1991-10-01), Strom et al.
patent: 5097369 (1992-03-01), Matsuzaki
patent: 5128822 (1992-07-01), Chapin et al.
patent: 5210666 (1993-05-01), Chapin et al.
patent: 5212608 (1993-05-01), Yoneoka
IBM Technical Disclosure Bulletin, vol. 22, No. 1, Jun. 1979, Garnier, Air Bearing Magnetic Head Slider, p. 332.
Yoneoka et al., A Negative Pressure Microhead Slider for Ultralow Spacing With Uniform Flying Height, IEEE Trans. Magn., vol. 27, No. 6, pt. 2, pp. 5085-5087, (Nov. 1991).
Crane Peter
Ihrke Layne S.
Korzuch William R.
Seagate Technology Inc.
Tupper Robert S.
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