Patent classifications
H01G4/1236
MULTILAYER CERAMIC ELECTRONIC COMPONENT INCLUDING MULTILAYER EXTERNAL ELECTRODES
A multilayer ceramic electronic component includes a multilayer body and external electrodes provided on opposing end surfaces of the multilayer body. Each external electrode includes an underlying electrode layer including metal components and ceramic components, and plating layers on the underlying electrode layer. A metal of the plating layer on the underlying electrode layer diffuses into the underlying electrode layer, and exists at an interface where the metal components included in the underlying electrode layer are in contact with each other and an interface where the metal component and the ceramic component included in the underlying electrode layer are in contact with each other.
MULTLAYER ELECTRONIC COMPONENT
A multilayer electronic component includes: a body and an external electrode disposed on the body, wherein the external electrode includes a conductive resin layer containing a bisphenol A-based resin and a biphenyl-based resin with a specific mixing ratio (e.g., a ratio of a content of the biphenyl-based resin with respect to a total content is 10 wt % or more and 50 wt % or less). Such a resin mixing ratio between the bisphenol A-based resin and the biphenyl-based resin can lead to 0.337≤2*C/A≤0.367 or 0.048≤B/A≤0.14, with an aromatic ring peak intensity (A), a carbonyl peak intensity (B), and an alcohol peak intensity (C) in a Fourier transform infrared spectroscopy (FT-IR) analysis. The multilayer electronic component showing such peak intensity characteristics can suppress oxidation of a conductive resin layer while also securing excellent adhesive strength of the conductive resin layer.
Method of producing a multi-layer ceramic electronic component
A method of producing a multi-layer ceramic electronic component includes: producing a multi-layer unit including ceramic layers that are laminated in a first direction, internal electrodes that are disposed between the ceramic layers, and a side surface that faces in a second direction orthogonal to the first direction, the internal electrodes being exposed on the side surface; sintering the multi-layer unit; and forming a side margin on the side surface of the sintered multi-layer unit.
MULTLAYER ELECTRONIC COMPONENT
A multilayer electronic component includes a body including a dielectric layer and first and second internal electrodes disposed with the dielectric layer interposed therebetween in a first direction, first and second side margin portions respectively disposed on surfaces of the body in a third direction, and external electrodes respectively disposed on surfaces of the body in a second direction. The first side margin portion includes first dielectric grains, the dielectric layer includes second dielectric grains, and in cross-sections of the first side margin portion and the body in the first and third directions, a ratio of a major axis length to a minor axis length of the first dielectric grain is 3 or greater and 30 or less, and a ratio of a major axis length to a minor axis length of the second dielectric grain is 1.5 or less.
MULTILAYER ELECTRONIC COMPONENT
A multilayer electronic component includes a body including a dielectric layer and a first internal electrode and a second internal electrode having first to sixth surfaces, a first external electrode including a first connection portion on the third surface, a first band portion on a portion of the first surface, and a third band portion on a portion of the second surface, a second external electrode including a second connection portion on the fourth surface, a second band portion on a portion of the first surface, and a fourth band portion on a portion of the second surface, an insulating layer disposed on the first and second connection portions and covering the second surface and the third and fourth band portions, a first plating layer disposed on the first band portion, and a second plating layer disposed on the second band portion. The insulating layer includes an oxide containing Ba.
MULTILAYER ELECTRONIC COMPONENT
A multilayer electronic component includes a body having a dielectric layer and first and second internal electrodes alternately disposed with the dielectric layer interposed therebetween. The body has a hexahedral shape. A first external electrode includes a first connection portion disposed on a third surface, and first and third band portions extending from the first connection portion respectively onto a portion of a first and a second surface. A second external electrode includes a second connection portion disposed on a fourth surface, and second and fourth band portions extending from the second connection portion respectively onto a portion of the first and second surfaces. An insulating layer including an oxide containing hafnium is disposed on the first and second connection portions and covers the second surface and the third and fourth band portions. First and second plating layers are disposed respectively on the first and second band portions.
MULTILAYER ELECTRONIC COMPONENT
A multilayer electronic component includes a body including first and second surfaces opposing each other in a first direction, and third and fourth surfaces connected to the first and second surfaces and opposing each other in a second direction; a first external electrode including a first connection portion disposed on the third surface, and a third band portion extending from the first connection portion to a portion of the second surface; a second external electrode including a second connection portion disposed on the fourth surface, and a fourth band portion extending from the second connection portion to a portion of the second surface; an insulating layer disposed on the first and second connection portions and covering the second surface and the third and fourth band portions; the insulating layer includes an oxide including zirconium (Zr).
Ceramic electronic device, mounting substrate, package body of ceramic electronic device, and manufacturing method of ceramic electronic device
A ceramic electronic device includes: a multilayer chip having a multilayer structure and a cover layer, the multilayer structure having a structure in which each of dielectric layers and each of internal electrode layers are alternately stacked, respective one ends of the plurality of internal electrode layers being alternately exposed to a first end face and a second end face of the multilayer structure, the cover layer being provided on each of an upper face and a lower face of the multilayer structure in a stacking direction of the multilayer structure, a main component of the cover layer being ceramic, wherein in each of two side faces of the multiplayer structure, a color of a first region is different from a color of a second region that is positioned at a height different from the first region in the stacking direction.
CERAMIC ELECTRONIC COMPONENT, MOUNTING SUBSTRATE ARRANGEMENT, AND METHODS OF MANUFACTURING CERAMIC ELECTRONIC COMPONENT
A ceramic electronic component includes an element body including a first internal electrode, a second internal electrode disposed in parallel to the first internal electrode, and a dielectric interposed between the first and second internal electrodes and surrounding them, and external electrode electrically connected to ends of the internal electrodes. The element body has a bottom surface on which respective ends of the first and second internal electrodes are exposed and a top surface. The dielectric has bottom dielectric regions adjacent to the bottom surface, a top dielectric region adjacent to the top surface, and a middle height dielectric region disposed between the bottom and top dielectric region. The bottom dielectric regions have a ratio of the concentration of one or more group 14 elements to the concentration of one or more group 2 elements that is higher than that in the top dielectric region.
METHOD FOR MANUFACTURING HIGH-K MIM CAPACITOR TO IMPROVE ELECTRICAL CHARACTERISTICS
An embodiment of the present disclosure provides a MIM capacitor by High-k dielectric and method for fabricating the same to prevent formation of oxygen-based interface films between a lower electrode and a dielectric layer, and between an upper electrode and a dielectric layer by stacking a first film formed of metal between the dielectric layer formed of a High-k material having a high dielectric constant and the lower electrode formed of metal, and a second film formed of metal between the dielectric layer and the upper electrode.