US5040092A
Expired / Lapsed
US
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Multilayer capacitor
Assignee: Murata Manufacturing Co Ltd
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Filing: 1990-07-17
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Granted: 1991-08-13
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Expires: 2010-07-17
Abstract
Abstract A multilayer capacitor in which first and second groups of inner electrodes each respectively comprising a plurality of inner electrodes are arranged so as to be overlapped with each other and spaced apart by a ceramic layer in a sintered body composed of dielectric ceramics. The inner electrodes are alternately led out to first and second side surfaces of the sintered body and a pair of outer electrodes are formed on the first and second side surfaces of the sintered body. The first and second groups of inner electrodes are arranged spaced apart from each other by a ceramic layer having a thickness of "a" satisfying the condition a≧2b, where "b" is the thickness of the ceramic layer between the inner electrodes in each of the first and second groups of inner electrodes.
Inventors
- 👤 Noboru Katho
- 👤 Emiko Nogome
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:03
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/30
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
128 words
A multilayer capacitor comprising: a sintered body composed of dielectric ceramics; first and second groups of inner electrodes, each respectively comprising a plurality of inner electrodes, which are arranged so as to be overlapped with each other and separated by a ceramic layer in said sintered body and are alternately led out to first and second side surfaces of the sintered body; and a pair of outer electrodes formed on the first and second side surfaces of said sintered body, said first and second groups of inner electrodes being arranged separated by a ceramic layer having a thickness of "a" satisfying the condition a≧2b, where "b" is the thickness of the ceramic layer between the inner electrodes in each of the first and second groups of inner electrodes.
Claim 2
Dependent Claim
128 words
A multilayer capacitor comprising: a sintered body composed of dielectric ceramics; first and second groups of inner electrodes, each respectively comprising a plurality of inner electrodes, which are arranged so as to be overlapped with each other and separated by a ceramic layer in said sintered body and are alternately led out to first and second side surfaces of the sintered body; and a pair of outer electrodes formed on the first and second side surfaces of said sintered body, said first and second groups of inner electrodes being arranged separated by a ceramic layer having a thickness of "a" satisfying the condition a≧2b, where "b" is the thickness of the ceramic layer between the inner electrodes in each of the first and second groups of inner electrodes.
Claim 3
Dependent Claim
32 words
The multilayer capacitor according to claim 1, wherein a pair of inner electrodes located at opposite respective sides of said ceramic layer having the thickness "a" are connected to different outer electrodes.
Claim 4
Dependent Claim
27 words
The multilayer capacitor according to claim 2, wherein each of said first and second groups of inner electrodes includes a total of three or more inner electrodes.
Claim 5
Dependent Claim
18 words
The multilayer capacitor according to claim 2, wherein said different outer electrodes are connected respectively to different potentials.
Claim 6
Dependent Claim
33 words
The multilayer capacitor according to claim 1, wherein a pair of inner electrodes located at opposite respective sides of said ceramic layer having the thickness "a" are connected to the same outer electrode.
Claim 7
Dependent Claim
20 words
The multilayer capacitor according to claim 5, wherein said pair of inner electrodes are connected respectively to the same potential.
Claim 8
Dependent Claim
27 words
The multilayer capacitor according to claim 5, wherein each of said first and second groups of inner electrodes includes a total of three or more inner electrodes.
Claim 9
Dependent Claim
27 words
The multilayer capacitor according to claim 1, wherein said first and second side surfaces constitute a pair of side surfaces on opposite sides of the sintered body.
Claim 10
Dependent Claim
181 words
A multilayer capacitor comprising: a sintered body composed of dielectric ceramics; first and second groups of inner electrodes, each respectively comprising a plurality of inner electrodes, which are arranged so as to be overlapped with each other and separated by a ceramic layer in said sintered body and are alternately led out to first and second side surfaces of the sintered body; and a pair of outer electrodes formed on the first and second side surfaces of said sintered body, said first and second groups of inner electrodes being arranged separated by a ceramic layer having a thickness of "a" satisfying the condition a is greater than or equal to 2b, where "b" is the thickness of the ceramic layer between the inner electrodes in each of the first and second groups of inner electrodes; wherein a pair of inner electrodes located at opposite respective sides of said ceramic layer having the thickness "a" are connected to the same outer electrode; and wherein the number of said first and second groups of inner electrodes is a total of three or more.
Claim 11
Dependent Claim
181 words
A multilayer capacitor comprising: a sintered body composed of dielectric ceramics; first and second groups of inner electrodes, each respectively comprising a plurality of inner electrodes, which are arranged so as to be overlapped with each other and separated by a ceramic layer in said sintered body and are alternately led out to first and second side surfaces of the sintered body; and a pair of outer electrodes formed on the first and second side surfaces of said sintered body, said first and second groups of inner electrodes being arranged separated by a ceramic layer having a thickness of "a" satisfying the condition a is greater than or equal to 2b, where "b" is the thickness of the ceramic layer between the inner electrodes in each of the first and second groups of inner electrodes; wherein a pair of inner electrodes located at opposite respective sides of said ceramic layer having the thickness "a" are connected to the same outer electrode; and wherein the number of said first and second groups of inner electrodes is a total of three or more.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-08-12 | 1995-02-11 | 1995-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-12 | 1999-02-11 | 1999-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-12 | 2003-02-11 | 2003-08-13 | $7700.00 | Window Closed / Lapsed |