Capacitor and method for manufacturing same
AssigneeRubycon Corporation
InventorTomonao Kako
Life of this patent
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Abstract
A capacitor (1) includes a main body (10) in which dielectric layers (13) and electrode layers (11) are laminated, and an external electrode (20) connected to at least a part of the main body by metallikon. Each dielectric layer has a thickness Dt at a connection boundary (18) where the main body is connected to the external electrode, each electrode layer has a thickness Et at the connection boundary, and a ratio between the thickness Dt and the thickness Et is at least a first value DEmin. The first value DEmin may satisfy the following conditions with respect to a minimum set value Dt1 of the thickness Dt DE min ≥ a × Dt 1 + b 0.1 μm ≤ Dt 1 ≤ Dt ≤ 1.5 μm where a and b are coefficients.
Claims14
A capacitor comprising a main body in which dielectric layers and electrode layers are alternatively laminated, and an external electrode connected to at least a part of the main body by metallikon,
- wherein each of the dielectric layers has a thickness Dt at a connection boundary where the main body is connected to the external electrode,
- each of the electrode layers has a thickness Et at the connection boundary, and
- a ratio between the thickness Dt, the thickness Et, and a first value DEmin satisfy a following condition with respect to a minimum set value Dt1 of the thickness Dt
- Dt
- /
- Et
- ≥
- DE
-
- min
- DE
-
- min
- ≥
- a
- ×
- Dt
-
- 1
- +
- b
- 0.1
- µ
-
- m
- ≤
- Dt
-
- 1
- ≤
- Dt
- ≤
- 1.5
- µ
-
- m
- 4.9
- <
- a
- <
- 5.2
- 1.7
- <
- b
- <
- 2.4
- where a and b are coefficients.
A method of manufacturing a capacitor including a main body in which dielectric layers and electrode layers are alternatively laminated and an external electrode connected to at least a part of the main body,
- the method comprising laminating the dielectric layers and the electrode layers so that a ratio between a thickness Dt of each of the dielectric layers at a connection boundary where the main body is connected to the external electrode, a thickness Et of each of the electrode layers at the connection boundary, and a first value DEmin satisfies the following conditions with respect to a minimum set value Dt1 of the thickness Dt
- Dt
- /
- Et
- ≥
- DE
-
- min
- DE
-
- min
- ≥
- a
- ×
- Dt
-
- 1
- +
- b
- 0.1
- µ
-
- m
- ≤
- Dt
-
- 1
- ≤
- Dt
- ≤
- 1.5
- µ
-
- m
- 4.9
- <
- a
- <
- 5.2
- 1.7
- <
- b
- <
- 2.4
- where a and b are coefficients.
Dependencies are inferred from the claim text.