Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1997-12-18
1999-11-09
Klimowicz, William J.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
360 9702, G11B 548, G11B 3314
Patent
active
059825847
ABSTRACT:
An integrated lead suspension flexure including a metal spring layer having a metal base region, a metal head bonding platform, and one or more metal spring arms connecting the metal head bonding platform to the metal base region for flexure motion. The flexure also includes a conductive lead layer having a surface facing the metal spring layer and extending between the metal base region and the metal head bonding platform. The conductive lead layer has lead base region portions extending over the metal base region, lead metal-backed arm portions extending over the metal spring arms, and lead suspended portions extending from at least one of the lead metal-backed arm portions. The flexure further includes a hygroscopic insulator layer between the metal spring layer and the conductive lead layer having insulator base region portions for bonding the lead base region portions to and insulating the lead base region portions from the metal base region, insulator metal-backed arm portions for bonding the lead metal-backed arm portions to and insulating the lead metal-backed arm portions from the metal spring arms, and insulator suspended portions on the lower surface of the lead suspended portions. A first curvature is induced on each insulator metal-backed arm portion and a second curvature is induced on each insulator suspended portion when the insulator layer undergoes volumetric variations. The insulator metal-backed arm portions and insulator suspended portions have a serial arrangement so that the direction of the first curvature opposes the direction of the second curvature.
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Bennin Jeffry S.
Boucher Todd W.
Liberko Anthony J.
Loehlein Raymond A.
Matz Robert J.
Hutchinson Technology Incorporated
Klimowicz William J.
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