摘要:
A method for manufacturing a laminated electronic component includes the steps of preparing a laminated component main body, the component main body including internal electrodes formed therein, and each of the internal electrodes being partially exposed on an external surface of the component main body, and forming an external terminal electrode on the external surface of the component main body such that the external terminal electrode is electrically connected to the internal electrodes. The step of forming the external terminal electrode includes the steps of forming a metal layer on exposed surfaces of the internal electrodes, applying a water repellant on a surface of the metal layer and a section of the external surface of the component main body at which an end edge of the metal layer is located, and then forming a conductive resin layer on the metal layer having the water repellant applied thereon.
摘要:
In a method for manufacturing a laminated ceramic electronic component, after a plating layer for an external terminal electrode is formed by applying copper plating to an end surface of a component main body at which respective ends of a plurality of internal electrodes primarily including nickel are exposed, when a heat treatment at a temperature of about 800° C. or more is applied in order to improve adhesion strength and resistance to moisture of the external terminal electrode, voids may occur in the plating layer. The step of applying a heat treatment at a temperature of about 800° C. or more to a component main body with plating layers formed thereon includes not only a step of maintaining a top temperature of about 1000° C. or more but also a step of maintaining a temperature of about 600° C. to 900° C. at least once before the step of maintaining the top temperature.
摘要:
A laminated electronic component includes outer terminal electrodes including lower plating films including metal particles having an average size of 0.5 μm or less, the lower plating films being formed by directly plating an outer surface of an electronic component body such that the lower plating films are electrically connected to exposed portions of inner conductors. The outer terminal electrodes may further include upper plating films formed on the lower plating films, the upper plating films being defined by one or more layers. Metal particles defining the upper plating films may have an average size of 0.5 μm or less. The metal particles defining the lower plating films may be Cu particles.
摘要:
A laminated electronic component includes outer terminal electrodes including lower plating films including metal particles having an average size of 0.5 μm or less, the lower plating films being formed by directly plating an outer surface of an electronic component body such that the lower plating films are electrically connected to exposed portions of inner conductors. The outer terminal electrodes may further include upper plating films formed on the lower plating films, the upper plating films being defined by one or more layers. Metal particles defining the upper plating films may have an average size of 0.5 μm or less. The metal particles defining the lower plating films may be Cu particles.
摘要:
A method for manufacturing a laminated electronic component including an electronic component main body including laminated functional layers, internal conductors which are disposed inside the electronic component main body and a portion of which are exposed portions exposed at outer surfaces of the electronic component main body, and external terminal electrodes disposed on the outer surfaces of the electronic component main body so as to connect to the internal conductors and cover the exposed portions of the internal conductors includes the step of forming a substrate plating film having an average particle diameter of metal particles of at least about 1.0 μm on the outer surface of the electronic component main body through direct plating so as to cover the exposed portions of the internal conductors in the formation of the external terminal electrodes on the electronic component main body.
摘要:
When external electrodes of a multilayer ceramic capacitor are formed by performing direct plating on surfaces at which internal electrodes are exposed without forming paste electrode layers, bonding forces of plating layers are relatively weak, and in addition, when glass particles are included in the plating layers, blisters are often generated. To overcome these problems, a multilayer ceramic capacitor is formed by performing electrolytic plating using a plating bath including glass particles, electrolytic plating layers including glass particles dispersed therein are formed as the external electrodes.
摘要:
A laminated electronic component is configured to include substrate plating films disposed on outer surfaces of an electronic component main body through direct plating such that external terminal electrodes are connected to exposed portions of internal conductors (internal electrodes), and the average particle diameter of metal particles defining the substrate plating film is at least about 1.0 μm. The external terminal electrode includes at least one layer of an upper plating film disposed on the substrate plating film. The metal particles defining the substrate plating film are Cu particles.
摘要:
In a laminated ceramic electronic component, external terminal electrodes include plating films directly covering exposed portions of internal electrodes on end surfaces of a ceramic element assembly. On the boundaries between the end surfaces and principal surfaces of the ceramic element assembly, substantially rounded corners are provided, and the plating films are arranged such that the ends of the plating films stop at the corners and do not project from the principal surfaces.
摘要:
A method for manufacturing a monolithic ceramic electronic component includes a plating substep of depositing precipitates primarily composed of a specific metal on an end of each of internal electrodes exposed at a predetermined surface of a laminate and growing the precipitates to coalesce into a continuous plated layer, wherein the specific metal is different from that of the internal electrodes, and the same or substantially the same metal that defines the internal electrodes is distributed throughout the plated layer.
摘要:
A multilayer ceramic electronic component includes external terminal electrodes that are formed by depositing metal plating films on exposed portions of internal conductors embedded in a ceramic body, depositing a copper plating films that cover the metal plating films and make contact with the ceramic body around the metal plating films, and heat-treating the ceramic body to generate a copper liquid phase, an oxygen liquid phase, and a copper solid phase between the copper plating films and the ceramic body. The mixed phase including these phases forms a region at which a copper oxide is present in a discontinuous manner inside the copper plating film at least at the interfaces between the ceramic body and the copper plating films. The copper oxide securely attaches the copper plating films to the ceramic body and enhances the bonding force of the external terminal electrodes.