Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1997-09-24
1999-11-23
Heinz, A. J.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
G11B 548
Patent
active
059911220
ABSTRACT:
A method for manufacturing disk drive head suspensions of the type for supporting a transducer head in a loaded state at a fly height above an information storage disk. A desired loaded state side profile for the suspension is determined, for example, by experimental or numerical techniques. The nature and location of one or more weakening structures on the suspension are then determined. The weakening structures will cause the profile of the suspension to change as the suspension moves from an unloaded state to the loaded state, and to have the desired loaded state side profile when in the loaded state at the fly height. Experimental and empirical techniques can be used to determine the nature and location of the weakening structures. A plurality of the suspensions, each having the weakening structures, are then manufactured. Suspension manufactured by the method can be optimized for resonance and other performance-related characteristics.
REFERENCES:
patent: 4996616 (1991-02-01), Aoyagi et al.
patent: 5027241 (1991-06-01), Hatch et al.
patent: 5065268 (1991-11-01), Hagen
patent: 5107383 (1992-04-01), Takeuchi et al.
patent: 5285564 (1994-02-01), Imasaki
patent: 5313353 (1994-05-01), Kohso et al.
patent: 5339208 (1994-08-01), Yumura et al.
patent: 5367419 (1994-11-01), Kazama
patent: 5386331 (1995-01-01), Wolter
patent: 5408372 (1995-04-01), Karam, II
patent: 5455727 (1995-10-01), Baral et al.
patent: 5461525 (1995-10-01), Christianson et al.
patent: 5471734 (1995-12-01), Hatch et al.
patent: 5594607 (1997-01-01), Erpelding et al.
patent: 5606477 (1997-02-01), Erpelding et al.
patent: 5657187 (1997-08-01), Hatch et al.
patent: 5793569 (1998-08-01), Christianson
patent: 5835307 (1998-11-01), Sone
patent: 5905608 (1999-05-01), Frees
Frees et al., Experimental and Numerical Analysis of Read/Write Head Suspension Dynamics For High Performance Floppy Drive Systems, IBM SJ 166, pp. 1-6.
Jeans, Analysis of the Dynamics of a Type 4 Suspension, Journal of Vibration and Acoustics, Transactions of the ASME, vol. 114, Jan. 1992, pp. 74-78.
Mizoshita et al., Dynamic Characteristics of a Magnetic Head Slider, IEEE Transactions on Magnetics, vol. Mag-21, No. 5, Sep. 1985, pp. 1509-1511.
Miu et al., Tracking Dynamics of Read/Write Head Suspensions in High-Performance Small Form Factor Rigid Disk Drives, Research Laboratory for Computerized Machines Technical Report No. 88-03, IBM-SJ-166, 39 pp.
Tangren John H.
Willard Daniel D.
Heinz A. J.
Hutchinson Technology Incorporated
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