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US5084958A
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Method of making conductive film magnetic components
Assignee: Lockheed Martin Corp
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Filing: 1991-01-25
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Granted: 1992-02-04
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Expires: 2011-01-25
Abstract
Abstract A conductive film magnetic component such as an inductor or transformer includes a conductive film winding having a generally serpentine configuration when disposed in a plane. This film is folded to form a stack of layers with each "layer" comprising part of a winding turn and with successive "layers" connected at the folds via the continuous conductive film. The conductive film may be self-supporting and coated with a dielectric layer or may be disposed on a dielectric membrane. The film and membrane are preferably patterned photolithographically.
Inventors
- 👤 Alexander J. Yerman
- 👤 Khai D. Ngo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:58
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/28; H01F27/2804; H01F27/2847; H01F2027/2861; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49073
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
192 words
A method of making a conductive film magnetic component, comprising: providing a primary conductive film having first and second major surfaces, said primary conductive film having a generally serpentine configuration when disposed in a plane; folding said primary conductive film in an accordion manner to form a stack of layers having an axis extending at an angle thereto, said primary conductive film thereby comprising a primary winding encircling said axis in a manner to provide a plurality of winding turns with the winding turn connections being integral with said primary conductive film; disposing a dielectric material between adjacent layers of said stack, said dielectric material comprising a dielectric membrane having first and second major surfaces, the first major surface of said primary conductive film being in contact with the first major surface of said dielectric membrane; providing a plurality of separate secondary conductive films, each of said secondary conductive films being disposed on a secondary dielectric membrane; interleaving said secondary conductive films with the layers of said stack so that said secondary conductive films are insulated from said primary winding; and electrically connecting said secondary films together to form a secondary winding.
Claim 2
Independent Claim
192 words
A method of making a conductive film magnetic component, comprising: providing a primary conductive film having first and second major surfaces, said primary conductive film having a generally serpentine configuration when disposed in a plane; folding said primary conductive film in an accordion manner to form a stack of layers having an axis extending at an angle thereto, said primary conductive film thereby comprising a primary winding encircling said axis in a manner to provide a plurality of winding turns with the winding turn connections being integral with said primary conductive film; disposing a dielectric material between adjacent layers of said stack, said dielectric material comprising a dielectric membrane having first and second major surfaces, the first major surface of said primary conductive film being in contact with the first major surface of said dielectric membrane; providing a plurality of separate secondary conductive films, each of said secondary conductive films being disposed on a secondary dielectric membrane; interleaving said secondary conductive films with the layers of said stack so that said secondary conductive films are insulated from said primary winding; and electrically connecting said secondary films together to form a secondary winding.
Claim 3
Dependent Claim
17 words
The method of claim 1 wherein said secondary conductive films are connected in parallel to each other.
Claim 4
Dependent Claim
13 words
The method of claim 1 wherein said secondary winding comprises a tapped winding.
References Cited (Backward Citations)
US2943966A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-02-03 | 1995-08-05 | 1996-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-03 | 1999-08-05 | 2000-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-03 | 2003-08-05 | 2004-02-04 | $7700.00 | Window Closed / Lapsed |