Abstract:
PURPOSE: A multi-layered ceramic capacitor is provided to arrange an electrode for preventing oxidation which does not contribute to electrostatic capacity adjacently to the outer most inner electrode, thereby preventing oxidation of an inner electrode. CONSTITUTION: A multi-layered ceramic capacitor(40) includes a ceramic sinter main body unit(41), the first and second inner electrodes(42a,42b) and the first and second outer electrodes(45a,45b). Cover layers provided to both sides as the outer most layer and ceramic layers between the cover layer are laminated to form the ceramic sinter main body unit. The first and second inner electrodes are formed on the ceramic layers. The first and the second inner electrodes are alternatively laminated with one ceramic layer between the first and second inner electrodes. The first and the second outer electrodes are formed in external sides of the ceramic sinter main body unit respectively so that the first and the second outer electrode are respectively connected to the first and second inner electrodes. The first and second inner electrodes include Ni. The cover layer includes BaTiO3 and MgO. MgO is included in the cover layer at a rate less than 0.5 mole about BaTiO3 100 mole.
Abstract:
본 발명은, 양면에 최외곽층으로 제공되는 커버층과 그 사이에 복수의 세라믹층이 적층된 세라믹 소결 본체부와, 상기 복수의 세리믹층 상에 형성되며, 일 세라믹층을 사이에 두고 교대로 적층된 제1 및 제2 내부전극과, 상기 제1 및 제2 내부전극에 각각 연결되도록 상기 세라믹 소결 본체부의 외부면에 각각 형성된 제1 및 제2 외부전극과, 상기 커버층과 그와 인접한 세라믹층 사이에 각각 형성되며, 정전용량에 기여하지 않는 산화방지용 전극층을 포함하는 적층 세라믹 캐패시터를 제공한다. 적층 세라믹 캐패시터(multi-layered ceramic capacitor), 산화(oxidation), Ni 내부전극(Ni internal electrode)
Abstract:
A method of manufacturing multi-layered electronic parts and an apparatus thereof are provided to prevent the occurrence of defects such as a crack, the delamination, and a pore of a sintered body. A method of manufacturing multi-layered electronic parts includes the step1 of preparing a pair of elastic plates having a plurality of planar portions and projections; the step2 of arranging a plurality of green chips spaced from each other in the planar portions between the pair of elastic plates prepared in the step1; the step3 of vacuum-packing the pair of elastic plates having the green chips arranged therein in the step2; and the step4 of hydrostatic-pressing a vacuum-packed body formed in the step3 at a predetermined temperature. The elastic plates prepared in the step1 are made of rubber. The hardness of the elastic plate is in the range of 20 to 60 degrees. Thicknesses of the pair of elastic plates are twice to five times larger than those of the green chips. The elastic plates are formed by stacking two to five layered rubber plates having a thickness of 1 to 2 mm.
Abstract:
본 발명은 적층형 칩의 고속 승온 소성 방법에 관한 것으로, 적층형 칩을 소성시킬 때, 소성 온도로 곧바로 승온시키지 않고 소성 온도보다 일정 온도(예를 들어, 20℃ 정도) 낮은 온도까지는 고속으로 승온시키고, 그 다음 소성 온도까지는 일정 시간동안 서서히 승온시킴으로써, 고속 승온시 발생되는 오버슈팅(overshooting)을 크게 줄일 수 있다. 이를 위해, 본 발명의 적층형 칩의 고속 승온 소성 방법은, 적층형 칩을 제 1 소성 온도까지 소정의 속도로 승온하여 소성시키는 제 1 단계; 상기 제 1 소성 온도에서 제 2 소성 온도가 될 때까지 상기 제 1 단계의 승온 속도보다 낮은 속도로 승온하면서 소성시키는 제 2 단계; 상기 제 2 소성 온도에서 일정 시간동안 소성시키는 제 3 단계; 상기 제 2 소성 온도에서 제 3 소성 온도로 하강시키는 제 4 단계; 및 상기 제 3 소성 온도에서 일정 시간동안 소성시키는 제 5 단계;를 포함하는 것을 특징으로 한다. 적층형 칩, 소성, 고속 승온, 프로화일, 경사, 기울기
Abstract:
본 발명은 내환원성 유전체 자기조성물과 이를 이용한 적층세라믹 콘덴서 및 그 제조방법에 관한 것이다. 유전체 자기조성물은, (Ca 1-x Sr x )(Zr 1-yz Ti y Mn z )O 3 (단, 0.05≤x≤1.00, 0.04≤y≤0.15, 0.005≤z≤0.04)의 주성분과, Al 2 O 3 :0.01~5.0중량% 및 (1-ab)B 2 O 3 -aZnO-bSiO 2 (단, 0.1≤a≤0.7, 0.2≤b≤0.6인)의 유리 조성물:1.0~6.0중량%의 부성분으로 조성된다. 본 발명에서는 이 유전체 자기조성물을 유전체층으로 하고 비금속의 도전성분을 내부전극으로 하는 적층세라믹 콘데서와 그 제조방법 역시 제공된다. 내환원성, 콘덴서, Mn 산화물, 유리조성물
Abstract:
A method of manufacturing an inner electrode for multi-layered electronics parts and a green chip using the same are provided to remove a step between an inner electrode part and a non-inner electrode part which occurs at the time of stacking ceramic green sheets having the inner electrode. A method of manufacturing an inner electrode(30) for multi-layered electronics parts includes the step1 of, preparing a plurality of ceramic green sheets(10); step2 of forming a trench(20) having the same shape as a predetermined inner electrode pattern for each of the ceramic green sheets prepared in the step1; step3 of printing a predetermined inner electrode in the trench formed in the step2; and step4 of stacking the ceramic green sheets in which the inner electrode is formed in the step3. In the step4, the pattern having the same shape as the inner electrode is engraved or embossed. The trench is formed in a part in which the pattern is not formed by pressing an inner electrode forming processing member(40) and the ceramic green sheets to each other.
Abstract:
An internal electrode formation apparatus for ceramic chip components is provided to easily and uniformly form an internal electrode in mass by continuously performing a vacuum deposition process and a sputtering process. A metal target(35) is installed in a film forming chamber(30b). A transfer roll(32) is installed on both sides of a sheet transfer chamber(30a) to transfer a ceramic sheet(31). A guide roll(33) is interposed between both sides of the transfer roll to guide the ceramic sheet to a position opposite to the metal target. An energy source is installed in the film forming chamber. A shutter(36) is interposed between the ceramic sheet region and the metal target. A mask(37) is disposed between the ceramic sheet region and the shutter in the film forming chamber.
Abstract:
A method for fabricating dielectric powder for low temperature sintering and a method for fabricating a multilayer ceramic condenser using the same are provided to improve crystallization and to increase permittivity by removing oxygen vacancy. In a method for fabricating dielectric powder for low temperature sintering, a powder compound is prepared by mixing BaTiO3 powder and a sub component powder including BaCO3, MgO and Re2O3. The powder compound is thermally treated at a temperature of 1000-12000 degrees. The powder compound includes 0.01-2 mole BaCO3, 0.01-1.5 mole MgO and 0.1-1.5 mole Re2O3 as to 100 mole BaTiO3.
Abstract translation:提供一种制造用于低温烧结的电介质粉末的方法和使用其制造多层陶瓷电容器的方法,以改善结晶并通过去除氧空位来提高介电常数。 在低温烧结用电介质粉末的制造方法中,通过混合BaTiO 3粉末和包含BaCO 3,MgO和Re 2 O 3的亚成分粉末来制备粉末化合物。 粉末化合物在1000-12000度的温度下进行热处理。 对于100摩尔BaTiO 3,粉末化合物包括0.01-2摩尔BaCO 3,0.01-1.5摩尔MgO和0.1-1.5摩尔Re 2 O 3。