Data access module

Details Data access module Data access module

1994-07-07

1995-09-19

Psitos, Aristotelis

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360103, 360106, 360104, G11B 2116

Patent

active

054521513

ABSTRACT:
A data access module adapted for use in hard disc drives for accessing information from rotational disc storage media which includes an arm assembly rotatably mounted on a support means adjacent a disc stack within the drive or cartridge for positioning a plurality of magnetic slider head assemblies over a desired data track location on the individual discs of the disc stack, a voice coil actuator means provided to the arm assembly and adapted to cooperate with magnetic actuator means in the drive for moving the arm assembly in response to electrical current flow in the voice coil actuator, electronic control means disposed mounted on the arm assembly, and a magnetoresistive position reticle indicating means for counting data tracks during track access operation. A portion of the arm assembly is fabricated as a ceramic wafer having appropriately prepared surfaces on which the voice coil actuator means and position reticle indicating means are inlaid as plated metal elements and on which the electronic control means are mounted as integrated circuits.

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