US5835339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monolithic ceramic capacitor
Assignee: Murata Manufacturing Co Ltd
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Filing: 1997-07-24
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Granted: 1998-11-10
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Expires: 2017-07-24
Abstract
Abstract A monolithic ceramic capacitor and producing method thereof are disclosed. The ceramic capacitor has a plurality of dielectric ceramic layers, a plurality of inner electrodes formed between the dielectric ceramic layers in such a manner that one end of each inner electrode is exposed out of either end of the dielectric ceramic layers, and outer electrodes electrically connected with the exposed inner electrodes; in which the inner electrodes each are made of a base metal, and Si oxide layers or layers comprising an Si oxide and at least one component that constitutes said dielectric ceramic layers and said inner electrodes are formed adjacent to the inner electrodes. The capacitor has excellent thermal impact resistance and wet load resistance characteristics.
Inventors
- 👤 Norihiko Sakamoto
- 👤 Harunobu Sano
- 👤 Takaharu Miyazaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:07
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/30; H10; H10D; H10D84/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
86 words
A monolithic ceramic capacitor composed of at least three dielectric ceramic layers, at least two inner electrodes formed between adjacent ones of said dielectric ceramic layers in such a manner that one end of each said inner electrode is exposed at a different end of said dielectric ceramic layer, and outer electrodes electrically connected with the exposed inner electrode ends, the monolithic ceramic capacitor being characterized in that the inner electrodes are made of a base metal, and have a layer comprising Si oxide adjacent thereto.
Claim 2
Dependent Claim
86 words
A monolithic ceramic capacitor composed of at least three dielectric ceramic layers, at least two inner electrodes formed between adjacent ones of said dielectric ceramic layers in such a manner that one end of each said inner electrode is exposed at a different end of said dielectric ceramic layer, and outer electrodes electrically connected with the exposed inner electrode ends, the monolithic ceramic capacitor being characterized in that the inner electrodes are made of a base metal, and have a layer comprising Si oxide adjacent thereto.
Claim 3
Dependent Claim
29 words
The monolithic ceramic capacitor as claimed in claim 1, wherein the layer comprising Si oxide contains at least one component of said dielectric ceramic layers or said inner electrodes.
Claim 4
Dependent Claim
19 words
The monolithic ceramic capacitor as claimed in claim 2, wherein said base metal is Ni or an Ni alloy.
Claim 5
Dependent Claim
27 words
The monolithic ceramic capacitor as claimed in claim 3, wherein the layer comprising Si oxide covers substantially all of the surfaces of each of said inner electrodes.
Claim 6
Dependent Claim
27 words
The monolithic ceramic capacitor as claimed in claim 3, wherein the layer comprising Si oxide discontinuously covers the surfaces of at least one of said inner electrodes.
Claim 7
Dependent Claim
19 words
The monolithic ceramic capacitor as claimed in claim 2, wherein said base metal is Ni or an Ni alloy.
Claim 8
Dependent Claim
19 words
The monolithic ceramic capacitor as claimed in claim 1, wherein said base metal is Ni or an Ni alloy.
Claim 9
Dependent Claim
27 words
The monolithic ceramic capacitor as claimed in claim 1, wherein the layer comprising Si oxide covers substantially all of the surfaces of each of said inner electrodes.
Claim 10
Dependent Claim
27 words
The monolithic ceramic capacitor as claimed in claim 1, wherein the layer comprising Si oxide discontinuously covers the surfaces of at least one of said inner electrodes.
References Cited (Backward Citations)
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US5036425A
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US5117326A
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US5225960A
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JPH0645182A
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US5659456A
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US5712758A
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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) | 2001-11-09 | 2002-05-11 | 2002-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-11-09 | 2006-05-11 | 2006-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-11-09 | 2010-05-11 | 2010-11-10 | $7700.00 | Window Closed / Lapsed |