US4789914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thin film magnetic read-write head/arm assemblies
Assignee: HGST Netherlands BV
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Filing: 1986-10-28
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Granted: 1988-12-06
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Expires: 2006-10-28
Abstract
Abstract A thin film magnetic read/write head/arm assembly and method of manufacturing the same is disclosed herein. Contact soldering of the opposite to disk side of the read/write head to a cable in laminate relationship to the suspension arm, or a polyimide strip with conductors deposited thereon provides both electrical interconnection and mechanical support. Semiconductor devices can also be intermediately soldered between the head and cable for maximum noise suppression.
Inventors
- 👤 Norman G. Ainslie
- 👤 Vlasta A. Brusic
- 👤 Daniel W. Chapman
- 👤 Lubomyr T. Romankiw
- 👤 Richard K. Wilmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:24
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/4806; G11B5/4853; G11B5/127; G11B5/31; G11B5/3103; G11B5/3163
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
149 words
In a magnetic disk data storage system wherein a suspension arm supports and positions a thin film head/slider combination to specific tracks at particular radii on a magnetic disk and wherein said head/slider combination is electrically connected to external control circuitry, the improvement to said suspension arn and head/slider assembly comprising: (a) a head/slider combination having solder contact pads and an electrically conductive path formed on a top surface opposite to the surface intended to face a disk of said head/slider, the electrically conductive path providing electrical connection between the head and at least one of the solder contact pads, and (b) a cable wiring harness attached in a laminate relationship to said suspension arm said wiring harness being contact solder connected to said head/slider to thereby provide both mechanical support and electricl interconnection between the top surface of said head/slider and said cable wiring harness and suspension arm.
Claim 2
Dependent Claim
149 words
In a magnetic disk data storage system wherein a suspension arm supports and positions a thin film head/slider combination to specific tracks at particular radii on a magnetic disk and wherein said head/slider combination is electrically connected to external control circuitry, the improvement to said suspension arn and head/slider assembly comprising: (a) a head/slider combination having solder contact pads and an electrically conductive path formed on a top surface opposite to the surface intended to face a disk of said head/slider, the electrically conductive path providing electrical connection between the head and at least one of the solder contact pads, and (b) a cable wiring harness attached in a laminate relationship to said suspension arm said wiring harness being contact solder connected to said head/slider to thereby provide both mechanical support and electricl interconnection between the top surface of said head/slider and said cable wiring harness and suspension arm.
Claim 3
Dependent Claim
25 words
The suspension arm and head/slider assembly of claim 1 wherein a semiconductor device is soldered intermediately to said cable wiring harness and said head/slider combination.
Claim 4
Dependent Claim
22 words
The suspension arm and head/slider assembly of claim 1 wherein said suspension arm is a polyimide strip with electrical conductors deposited thereon.
References Cited (Backward Citations)
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JPS5330310A
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JPS5369623A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-12-06 | 1992-06-06 | 1992-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-06 | 1996-06-06 | 1996-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-06 | 2000-06-06 | 2000-12-06 | $7700.00 | Window Closed / Lapsed |