Patent US4072780A successfully refreshed from Google Patents.
US4072780A
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Process for making electrical components having dielectric layers comprising particles of a lead oxide-germanium dioxide-silicon dioxide glass and a resin binder therefore
Assignee: Varadyne Industries Inc
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Filing: 1976-10-28
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Granted: 1978-02-07
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Expires: 1996-10-28
Abstract
Abstract A process for making electronic filter circuit components is provided which comprises forming a flat electrically conductive layer on a wafer formed of ceramic, or of other appropriate dielectric material, the conductor being shaped to provide a portion of an inductive coil, or a capacitive element. The process of the invention assures relatively low resistance in the conductive layers so as to provide a filter circuit of a relatively high quality factor (Q), when a plurality of such wafers are stacked and appropriately interconnected.
Inventors
- 👤 Jack H. Zillman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:07
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/02; H01B3/08; H01B3/084; H01B3/002; H01B3/004; H01G; H01G4/00; H01G4/40; Y; Y10; Y10S; Y10S428/00; Y10S428/901; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/1075; Y10T428/00; Y10T428/25; Y10T428/252; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31699
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
72 words
An electrical component comprising a stack of flat planar dielectric wafers, each of said wafers having an electrically conductive layer thereon, said wafers being composed of minute particles of glass formed of silicon dioxide, lead oxide and germanium dioxide, in substantially the following proportions by weight: lead oxide (82%), germanium dioxide (11%) and silicon dioxide (7%), and an organic polymeric binder for said particles, and said conductive layer being formed of silver.
Claim 2
Dependent Claim
72 words
An electrical component comprising a stack of flat planar dielectric wafers, each of said wafers having an electrically conductive layer thereon, said wafers being composed of minute particles of glass formed of silicon dioxide, lead oxide and germanium dioxide, in substantially the following proportions by weight: lead oxide (82%), germanium dioxide (11%) and silicon dioxide (7%), and an organic polymeric binder for said particles, and said conductive layer being formed of silver.
Claim 3
Dependent Claim
115 words
A process for making an electrical component in the form of a stack of flat planar dielectric wafers, each of said wafers having an electrically conductive layer thereon, said process including the following steps: intermixing lead oxide and germanium dioxide and silicon dioxide in powdered form and in substantially the following proportions by weight: lead oxide (82%), germanium dioxide (11%) and silicon dioxide (7%) and forming minute glass particles from the resulting composition, intermixing the glass particles with an organic polymeric binder, casting the resultant composition into a tape, cutting the tape to form the dielectric wafers, and forming a pattern of silver on each of the dielectric wafers to constitute the electrically conductive layer.
Claim 4
Dependent Claim
115 words
A process for making an electrical component in the form of a stack of flat planar dielectric wafers, each of said wafers having an electrically conductive layer thereon, said process including the following steps: intermixing lead oxide and germanium dioxide and silicon dioxide in powdered form and in substantially the following proportions by weight: lead oxide (82%), germanium dioxide (11%) and silicon dioxide (7%) and forming minute glass particles from the resulting composition, intermixing the glass particles with an organic polymeric binder, casting the resultant composition into a tape, cutting the tape to form the dielectric wafers, and forming a pattern of silver on each of the dielectric wafers to constitute the electrically conductive layer.
Claim 5
Dependent Claim
20 words
The process defined in claim 2, and which includes the steps of pressing the wafers together as a laminated stack.
Claim 6
Dependent Claim
21 words
The process defined in claim 3, and which includes the step of dicing the laminated stack to form the electrical component.
References Cited (Backward Citations)
GB715475A
Cited
US3775844A
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US3852077A
Cited
US3837869A
Cited
US3765082A
Cited
US3935019A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-06 | 1981-08-08 | 1982-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-06 | 1985-08-08 | 1986-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-06 | 1989-08-08 | 1990-02-07 | $7700.00 | Window Closed / Lapsed |