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1. WO1996002914 - CONTACT RECORDING SLIDER WITH ACTIVE CONTACT SURFACES

Publication Number WO/1996/002914
Publication Date 01.02.1996
International Application No. PCT/US1995/008759
International Filing Date 12.07.1995
Chapter 2 Demand Filed 14.02.1996
IPC
G11B 5/60 2006.01
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
48Disposition or mounting of heads relative to record carriers
58with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
60Fluid-dynamic spacing of heads from record carriers
CPC
G11B 5/6005
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
48Disposition or mounting of heads ; or head supports; relative to record carriers
58with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
60Fluid-dynamic spacing of heads from record-carriers
6005Specially adapted for spacing from a rotating disc using a fluid cushion
Applicants
  • SUNWARD TECHNOLOGIES, INC. [US/US]; 5828 Pacific Center Road San Diego, CA 92121, US
Inventors
  • JACQUES, Alan, M.; US
Agents
  • LAND, John, F.; Fish & Richardson P.C. 4225 Executive Square La Jolla, CA 92307, US
Priority Data
08/276,96018.07.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CONTACT RECORDING SLIDER WITH ACTIVE CONTACT SURFACES
(FR) CURSEUR D'ENREGISTREMENT A CONTACT, AVEC DES SURFACES DE CONTACT ACTIVES
Abstract
(EN)
A method and apparatus for transferring information to and from a rigid magnetic disk medium (600) through a recording mechanism (123) mounted within a magnetic contact slider (100). The slider (100) is fashioned such that the trailing edge maintains contact with the magnetic recording medium (600) while the leading edge of the slider is disposed slightly above the medium (600) on an air bearing. An active contact surface (ACS) (104) utilizes a contact blend such that the width of the ABS (105) near a leading edge is greater than the width of the ABS (105) near a trailing edge. The ACS (104) contour allows air to bleed off air from the rear of the slider (100) and causes the trailing edge of the slider (100) to remain essentially in contact with the rigid recording medium surface (600). The ACS (104) contour also provides a 'transverse-free zone' for minimizing asperity damage and other harmfull effects of transverse air flow. The load point (F) is located near the leading edge of the contact slider (100). Thus, damage to the medium (600) which occurs during each stick/slip phase of liftoff is minimized.
(FR)
L'invention concerne un procédé et un appareil pour transférer de l'information vers et hors d'un dispositif à disque magnétique rigide (600) par l'intermédiaire d'un mécanisme d'enregistrement (123) monté à l'intérieur d'un curseur à contact magnétique (100). Le curseur (100) est agencé de manière à ce que le bord arrière reste en contact avec le milieu d'enregistrement magnétique (600) pendant que le bord avant du curseur se trouve légèrement au-dessus du milieu (600), sur un coussin d'air. Une surface active de contact SAC (104) utilise un contact profilé tel que la largeur de la surface sur coussin d'air SCA (105) près du bord avant soit plus importante que la largeur de la SCA (105) près du bord arrière. Le contour de la SAC (104) permet à de l'air de s'échapper de l'arrière du curseur (100) et fait que le bord arrière du curseur (100) reste sensiblement en contact avec la surface d'enregistrement rigide (600). Le contour de la SAC (104) fournit également une 'zone exempte de contacts transversaux' pour minimiser les détériorations dues aux aspérités d'autres effets néfastes des flux d'air transversaux. Le point de charge (F) se trouve près du bord avant du curseur à contact (100). On minimise ainsi les détériorations occasionnées au milieu (600) qui se produisent à chaque phase d'adhésion/glissement lors des décollages.
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