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Browse Prior Art Database

Coupled HSA for High Density Hard Disk Drive

IP.com Disclosure Number: IPCOM000103899D
Original Publication Date: 1993-Feb-01
Included in the Prior Art Database: 2005-Mar-18
Document File: 2 page(s) / 36K

Publishing Venue

IBM

Related People

Aoyagi, A: AUTHOR [+3]

Abstract

Disclosed is a Head Suspension Assembly design used in Hard Disk Drives to achieve high packaging capacity Hard Disk Drive.

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This is the abbreviated version, containing approximately 100% of the total text.

Coupled HSA for High Density Hard Disk Drive

      Disclosed is a Head Suspension Assembly design used in Hard
Disk Drives to achieve high packaging capacity Hard Disk Drive.

      This coupled Head Suspension Assembly has two sets of Load
Beams 1, Flexures and Sliders 2 attached to one Mount Plate 3 back to
back shown in Fig. 1.

      Fig. 2 shows a Head Suspension Assembly of prior art which
consists of a Mount Plate, a Load Beam, a Slider and a Flexure.  When
assembling these Head Suspension Assemblies onto an Actuator Arm 4,
Actuator Arm to Arm Spacing requires 2 times the Mount Plate
thickness which includes Swage Boss height and Some clearance shown
in Fig. 3.

      On the other hand, If we use the coupled Head Suspension
Assembly, Actuator Arm to Arm spacing requires only the thickness of
Mount Plate whichi includes Swage Boss height and Some clearance
shown in Fig. 4.  Typical Mount Plate thickness is 0.5 mm, so we can
reduce 0.5 mm of Actuator Arm to Arm spacing.  This means that we can
reduce 0.5 mm of Disk to Disk spacing.  Also, we can reduce the mass
of Actuator Arm Assemblies by eliminating half of Mount Plates.