Roll-biased head suspension for reduced track misregistration

Details Roll-biased head suspension for reduced track misregistration Roll-biased head suspension for reduced track misregistration

G - Physics

11

B

G11B 5/596 (2006.01) G11B 5/48 (2006.01) G11B 5/58 (2006.01) G11B 21/10 (2006.01) G11B 21/20 (2006.01) G11B 33/10 (2006.01)

Patent

CA 2232862

A method corrects track misregistraton attributable to out of plane motions of a rotating disk (10) in a hard disk drive (13), and includes the steps of measuring a base plate roll-bias angle between the rotating data storage disk and the head arm (15) with a precision measuring device, and connecting the head arm and load beam (17) at a roll-bias angle selected to minimize track misregistration attributable to the roll-bias. A number of connection arrangements and structures are presented in order to achieve the desired reduction in track misregistration.

Cette invention a pour objet un procédé qui permet de corriger une erreur de centrage sur la piste attribuable à des mouvements en déport d'un disque en rotation (10) dans une unité de disque dur (13). Le procédé consiste, d'une part, à mesurer un décalage angulaire du roulis d'une plaque de base entre le disque de stockage de données en rotation et le bas porte-tête (15), au moyen d'un instrument de mesure de précision, et, d'autre part, à connecter le bras porte-tête à un fléau de charge (17) en fonction d'un décalage angulaire du roulis choisi pour réduire au minimum une erreur de centrage sur la piste imputable au décalage du roulis, L'invention concerne également une certain nombre de configurations et de structures de connection permettant d'obtenir la réduction voulue d'une erreur de centrage sur la piste.

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