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Combination transducer/slider/suspension and method for making

Inactive Publication Date: 2000-02-01
HITACHI GLOBAL STORAGE TECH NETHERLANDS BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

It is, therefore, an object of the of the present invention to provide an enhanced, integrated combination transducer-slider-suspension assembly.
Yet another object of the present invention is to provide a unique process that permits the batch fabrication of a multitrack assembly wherein a plurality of transducer-slider assemblies are suspended from a single membrane suspension.

Problems solved by technology

Any error in the placement of the suspension relative to the slider results in the destruction of both pieces.
Again, errors can cause destruction of the entire combination.
There is no showing of a combination transducer-slider-suspension with conductors nor a method for making the combination.

Method used

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  • Combination transducer/slider/suspension and method for making
  • Combination transducer/slider/suspension and method for making
  • Combination transducer/slider/suspension and method for making

Examples

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Embodiment Construction

The preferred embodiments of the present invention are generally for use in large multiple disk drives but will also find use in the single disk drives used generally for personal computers. In FIG. 1A is illustrated a linear actuator 10 and a segment of an associated disk 12 of a data recording disk file. The linear actuator 10 includes a voice coil motor, which is a coil 14 movable within the magnetic field of a fixed permanent magnet assembly (not shown) having a core within coil 14 and an outer structure supported by housing 16. An actuator arm 20 is attached to the movable coil 14. Attached to the other end of the actuator arm 20 generally is a plurality of arms 21, one shown, each of which support a combination transducer-slider-suspension assembly 22 produced according to the procedure set forth herein. The assembly 22 includes a transducer-slider section 24 and a suspension section 26. The suspension section 26 supports the transducer-slider 24 above the surface of the disk ...

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Abstract

A disk drive assembly in which the suspension, slider and transducer are integrated and fabricated to produce a combination assembly. The combination transducer-slider-suspension assembly is batch produced by forming a plurality of the combination assemblies onto a single wafer. The wafer is then diced to separate the assemblies into individual sections. The transducers are deposited onto the wafer and the air bearing surface formed. Conductors to interconnect each transducer with the external circuits are insulated from the wafer and deposited along a path which will form the suspension. A spring-like resilient layer is then deposited over and electrically insulated from the conductors. The wafer is then pattern etched to remove a portion of the wafer backside to form the suspension and provide a transducer / slider combination having an air bearing surface after the wafer is diced to separate the individual combination assemblies. The air bearing surface is defined as the slider surface immediately adjacent the media surface during read / write operation of the disk drive assembly whether or not the slider is flying above or in sliding contact with the media surface during operation. Integrated circuit amplifiers can be deposited at the free end of the conductors prior to separation of individual assemblies.

Description

DOCUMENTS INCORPORATED BY REFERENCEJones Jr. et al, U.S. Pat. No. 4,190,872, issued on Feb. 26, 1980 and assigned to the assignee of the present invention, to show a thin film inductive transducer useful with the present invention.Lin, U.S. Pat. No. 3,975,772 issued on Aug. 17, 1976 and assigned to the assignee of the present invention, to show a thin film magnetoresistive head useful with the present invention.Hinkel et al, U.S. Pat. No. 4,624,048, issued on Nov. 25, 1986 and assigned to the assignee of the present invention, to show a process for making magnetic head sliders useful with the present invention.Jacobs, U.S. Pat. No. 4,251,841, issued on Feb. 17, 1981 and assigned to the assignee of the present invention, to show a wafer-substrate material useful with the present invention.Cuzner, et al, U.S. Pat. No. 3,849,800, issued on Nov. 19, 1974 and assigned to the assignee of the present invention, to show a rotary actuator useful in a drive using the present invention.TECHNIC...

Claims

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Application Information

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IPC IPC(8): G11B5/48G11B5/31G11B5/187G11B5/49G11B5/60G11B21/00G11B21/21
CPCG11B5/3103G11B5/4806G11B5/4813G11B5/4833G11B5/49G11B5/6005G11B21/00G11B5/484Y10T29/49041Y10T29/49032
Inventor MCKAY, JEFFREY M.NISHIHIRA, HENRY S.TAM, ANDREW C.
Owner HITACHI GLOBAL STORAGE TECH NETHERLANDS BV
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