Browse Prior Art Database

Low-Profile Suspension Assembly with Load/Unload Feature

IP.com Disclosure Number: IPCOM000116321D
Original Publication Date: 1995-Aug-01
Included in the Prior Art Database: 2005-Mar-30
Document File: 2 page(s) / 51K

Publishing Venue

IBM

Related People

Albrecht, DW: AUTHOR [+2]

Abstract

Disclosed is a Low-Profile Suspension Assembly design used in Hard Disk Drives with Load/Unload feature. Usually, the shape of Head Wire Loop from Magneto-Resistive (MR) Slider to Suspension Assembly is vertical because 4 pieces of the Ultra Sonic or Soldering Pads are located horizontally.

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Low-Profile Suspension Assembly with Load/Unload Feature

Disclosed is a Low-Profile Suspension Assembly design used in Hard
Disk Drives with Load/Unload feature.  Usually, the shape of Head
Wire Loop from Magneto-Resistive (MR) Slider to Suspension Assembly
is vertical because 4 pieces of the Ultra Sonic or Soldering Pads are
located horizontally.

      If we try to use a Head Suspension Assembly (HSA) with a
Dynamic Load/Unload feature, we can not use vertical Head Wire Loop
shape because these wires might touch the Dynamic Load/Unload
feature.

      In order to solve this problem, a new Low Profile Suspension
Assembly was designed with Load/Unload feature shown in Fig. 1.  The
new Suspension Assembly has a hole on the Load Beam.  The wires from
the MR slider go through the hole, and then bend about 90º  It is
recommended to connected the wires on the Load Beam by adhesives for
height reduction.

      By making the side flanges along the hole, the Stiffness of the
Load Beam can be maintained.  Reverse bent flanges are shown in Fig.
1 as an example.

      Another approach is to have Side Loop Wires shown in Fig. 2.
By inserting the Tube in the side flange, the maximum height even
with the Tube is also reduced.

      In both cases, if offset is made between the Load Beam and
Load/Unload Tab, it is possible to reduce the maximum height at the
far end of the Suspension Assembly shown in Fig. 3.