Browse Prior Art Database

Low Profile Wire Loop

IP.com Disclosure Number: IPCOM000113428D
Original Publication Date: 1994-Aug-01
Included in the Prior Art Database: 2005-Mar-27
Document File: 2 page(s) / 40K

Publishing Venue

IBM

Related People

Aoyagi, A: AUTHOR [+2]

Abstract

Disclosed is a wiring design used for Head Suspension Assembly (HSA) in Hard Disk Drives (HDDs) to achieve low profile HSA.

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Low Profile Wire Loop

      Disclosed is a wiring design used for Head Suspension Assembly
(HSA) in Hard Disk Drives (HDDs) to achieve low profile HSA.

      Usually the shape of head wire loop from slider to Suspension
Assembly is vertical shown in Fig. 1 if MR (Magneto-Resistive) slider
is used.  The 4 wires are connected on 4 pieces of the ultra sonic or
soldering Pads which are located horizontally.  Therefore, the
maximum HSA height at the far end of HSA is defined by the head wire
loop.

      In order to reduce the maximum height of the wires, the best
way is to make all wires horizontally shown in Fig.  2.  But it is
impossible because all wires conflict each other on the pads and we
can't perform ultra sonic bonding nor soldering.

      To solve this problem, the 4 wires are located horizontally and
bent with a certain angles near slider and then connected to the pads
on the slider shown in Fig. 3.

      If we try to use an a Suspension Assembly with a Dynamic
Load/Unload feature, this method prevent touching the wires the
Dynamic Load/Unload feature shown in Fig. 4.