US5645735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gimbal flexure and electrical interconnect assembly
Assignee: Hutchinson Technology Inc
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Filing: 1995-10-31
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Granted: 1997-07-08
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Expires: 2015-10-31
Abstract
Abstract A method for manufacturing a head suspension including separately manufacturing a load beam and a set of traces. The traces are formed from a sheet of conductive material and include an elongated conductor portion and a gimbal portion. Portions of the traces which are configured to be mounted to the load beam are coated with dielectric before being mounted to the load beam. The gimbal portion of the traces provides both mechanical and electrical connections to the conductor portion.
Inventors
- 👤 Jeffry S. Bennin
- 👤 Todd Boucher
- 👤 Jeffrey W. Green
- 👤 Gary E. Gustafson
- 👤 Ryan Jurgenson
- 👤 Brent D. Lien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:30
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/4806; G11B5/486; G11B5/4826; G11B5/4833; G11B5/4853; H; H05; H05K; H05K3/00; H05K3/36; H05K3/361; H05K3/365
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
194 words
A method of manufacture for a gimbal flexure and electrical interconnect assembly for attachment to a disk drive suspension assembly which positions a floating head assembly over selected tracks on the surface of a rotating data storage device, wherein said suspension assembly includes a load beam having a first surface and a distal end portion shaped and arranged for supporting a gimbal flexure, the method of manufacture, comprising: manufacturing a set of traces out of a single layer sheet of spring material, the set of traces including one or more elongated substrateless low-profile conductors, the set of traces having a load beam portion shaped and arranged to extend over and to match the surface topology of at least a section of the first surface of the load beam, and a gimbal portion located at a distal end of the set of traces shaped and arranged as a gimbal flexure means for mechanically coupling with the distal end portion of the load beam, providing gimballing support for the floating head assembly, and electrically coupling to electrical terminals on the head assembly; coating at least part of the set of traces with a thin dielectric material.
Claim 2
Independent Claim
194 words
A method of manufacture for a gimbal flexure and electrical interconnect assembly for attachment to a disk drive suspension assembly which positions a floating head assembly over selected tracks on the surface of a rotating data storage device, wherein said suspension assembly includes a load beam having a first surface and a distal end portion shaped and arranged for supporting a gimbal flexure, the method of manufacture, comprising: manufacturing a set of traces out of a single layer sheet of spring material, the set of traces including one or more elongated substrateless low-profile conductors, the set of traces having a load beam portion shaped and arranged to extend over and to match the surface topology of at least a section of the first surface of the load beam, and a gimbal portion located at a distal end of the set of traces shaped and arranged as a gimbal flexure means for mechanically coupling with the distal end portion of the load beam, providing gimballing support for the floating head assembly, and electrically coupling to electrical terminals on the head assembly; coating at least part of the set of traces with a thin dielectric material.
Claim 3
Dependent Claim
18 words
The method of manufacture of claim 1, wherein the dielectric coating is sprayed on the set of traces.
Claim 4
Dependent Claim
23 words
The method of manufacture of claim 1, further comprising the step of applying an adhesive to selected portions of the set of traces.
Claim 5
Dependent Claim
16 words
The method of manufacture of claim 1, wherein the dielectric material also acts as an adhesive.
Claim 6
Dependent Claim
32 words
The method of manufacture of claim 1, wherein the set of traces is manufactured of a material with a tensile strength and a yield strength similar to those of the suspension assembly.
Claim 7
Dependent Claim
23 words
The method of manufacture of claim 1, wherein the set of traces is photochemically etched out of a planar sheet of beryllium copper.
Claim 8
Dependent Claim
56 words
The method of manufacture of claim 1, further comprising the step of simultaneously manufacturing a support brace bracketing the set of conductive traces and including a planar border extending along at least one side of the set of conductive traces, tooling registration holes, and support tabs attaching the set of conductive traces to the planar border.
Claim 9
Dependent Claim
60 words
A method of manufacture for a plurality of gimbal flexure and electrical interconnect assemblies, comprising the step of simultaneously applying the method of manufacture of claim 7 to contiguous regions of a larger planar sheet of spring material, whereby a plurality of gimbal flexure and electrical interconnect assemblies are formed alongside each other, separated and supported by shared brace borders.
Claim 10
Independent Claim
251 words
A method of manufacture for a head suspension assembly for positioning a head assembly over a rotating data storage device and for transmitting electrical signals to and from the head assembly, said method of manufacture, comprising the steps of: providing a head assembly having a slider transducer and a plurality of electrical terminals; manufacturing a suspension assembly including a load beam having a first surface and a distal end portion shaped and arranged for supporting a gimbal flexure; manufacturing a set of traces out of a single layer sheet of spring material, the set of traces including one or more pre-shaped elongated substrateless low-profile conductors, the set of traces having a load beam portion shaped and arranged to extend over and to match the surface topology of at least a section of the first surface of the load beam, and a gimbal portion located at a distal end of the set of traces shaped and arranged as a gimbal flexure means for mechanically coupling with the distal end portion of the load beam, providing gimballing support for the floating head assembly, and electrically coupling to the electrical terminals on the head assembly; coating at least part of the set of traces with a thin dielectric material; attaching the set of traces to the load beam, forming an interconnect/suspension assembly; attaching the head assembly to the gimbal portion of the set of traces; and electrically coupling the gimbal portion of the set of traces to the electrical terminals on the head assembly.
Claim 11
Independent Claim
251 words
A method of manufacture for a head suspension assembly for positioning a head assembly over a rotating data storage device and for transmitting electrical signals to and from the head assembly, said method of manufacture, comprising the steps of: providing a head assembly having a slider transducer and a plurality of electrical terminals; manufacturing a suspension assembly including a load beam having a first surface and a distal end portion shaped and arranged for supporting a gimbal flexure; manufacturing a set of traces out of a single layer sheet of spring material, the set of traces including one or more pre-shaped elongated substrateless low-profile conductors, the set of traces having a load beam portion shaped and arranged to extend over and to match the surface topology of at least a section of the first surface of the load beam, and a gimbal portion located at a distal end of the set of traces shaped and arranged as a gimbal flexure means for mechanically coupling with the distal end portion of the load beam, providing gimballing support for the floating head assembly, and electrically coupling to the electrical terminals on the head assembly; coating at least part of the set of traces with a thin dielectric material; attaching the set of traces to the load beam, forming an interconnect/suspension assembly; attaching the head assembly to the gimbal portion of the set of traces; and electrically coupling the gimbal portion of the set of traces to the electrical terminals on the head assembly.
References Cited (Backward Citations)
JPS5319015A
Cited
JPS5330310A
Cited
JPS5374414A
Cited
US4337536A
Cited
US4543295A
Cited
JPS57167162A
Cited
US4616279A
Cited
JPS60246015A
Cited
US4823217A
Cited
US4645280A
Cited
US4670804A
Cited
US4839232A
Cited
US4801765A
Cited
US4811143A
Cited
US4819094A
Cited
US4792875A
Cited
US4789914A
Cited
US4761699A
Cited
US4853811A
Cited
US4827376A
Cited
US4975795A
Cited
US4884155A
Cited
US4991045A
Cited
US5003420A
Cited
US5012368A
Cited
US5166845A
Cited
US5068759A
Cited
US5001583A
Cited
US5006946A
Cited
US5124864A
Cited
US4996623A
Cited
US5249092A
Cited
US5111351A
Cited
US5027239A
Cited
US5103359A
Cited
US5121273A
Cited
US5052105A
Cited
US5055969A
Cited
US5074029A
Cited
JPH04146516A
Cited
EP0484906A2
Cited
US5225033A
Cited
JPH0536048A
Cited
US5274911A
Cited
US5490027A
Cited
US5384433A
Cited
US5391842A
Cited
WO1993015593A1
Cited
EP0599669A2
Cited
US5519552A
Cited
WO1995016261A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-07-07 | 2001-01-06 | 2001-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-07-07 | 2005-01-06 | 2005-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-07-07 | 2009-01-06 | 2009-07-08 | $7700.00 | Window Closed / Lapsed |