摘要:
A dielectric ceramics includes a main ingredient, and a supplemental ingredient in an amount of 0.05 to 2 wt % for the main ingredient. The main ingredient is expressed by xBiO3/2-yCaO-zNbO5/2 and is within a scope of a specified quadrilateral region in a ternary system diagram, and the supplemental ingredient is a glass composition including at least SiO2, Li2O and MO (M includes at least one of Ca, Sr and Ba). A ceramic electronic component is produced by co-firing a dielectric layer composed of the dielectric ceramics and a conductive layer mainly composed of silver, and has a low degradation in Q value and excellent microwave characteristics.
摘要:
A dielectric porcelain composition of the present invention includes a first component and second component. If the first component is represented by the general formula of xBaO—yNd2O3-zTiO2-wBi2O3 (provided that x+y+z+w=100), x, y, z, and w satisfy 12≦x≦16, 12≦y≦16, 65≦z≦69, and 2≦w≦5, respectively. The second component includes 30 to 37 wt % of BaO, 33 to 46 wt % of SiO2, 8 to 12 wt % of La2O3, 3 to 7 wt % of Al2O3, 0 to 1 wt % of SrO, 0 to 10 wt % of Li2O, 0 to 20 wt % of ZnO, and 7 wt % or less of B203. The compounding ratio of the second component is between 10 wt % and 30 wt % when the sum of the first and second components is 100. In addition, 0.1 to 1 parts by weight of Li2O and 3 to 10 parts by weight of ZnO, relative to 100 parts by weight of the sum of the first and second components, is also contained as a third component. An average particle diameter of the dielectric mixed powder forming dielectric porcelain composition before firing is 0.9 μm or less.
摘要翻译:本发明的电介质瓷组合物包括第一组分和第二组分。 如果第一组分由通式xBaO-yNd2O3-zTiO2-wBi2O3(条件是x + y + z + w = 100)表示,x,y,z和w满足12 <= x <= 16,12 <= y <= 16,65 <= z <= 69,2 <= w <= 5。 第二组分包括30至37重量%的BaO,33至46重量%的SiO 2,8至12重量%的La 2 O 3,3至7重量%的Al 2 O 3,0至1重量%的SrO,0至10重量%的 Li 2 O,0〜20重量%的ZnO和7重量%以下的B 2 O 3。 当第一和第二组分的总和为100时,第二组分的配合比例为10重量%至30重量%。此外,相对于0.1重量份的Li 2 O 3和10重量份的Li 2 O 3和10重量份 至100重量份的第一和第二组分的总和也被包含为第三组分。 烧成前的介电混合粉末形成介电瓷组合物的平均粒径为0.9μm以下。
摘要:
A multilayer ceramic substrate includes a glass ceramic body, a conductive pattern, and a via conductor. The conductive pattern is formed in the glass ceramic body and on at least one principal surface of the glass ceramic body. The via conductor makes a connection between the predetermined conductive patterns. The via conductor includes a conductive material and a Mo compound or a Mo metal. The conductive material includes at least one selected from the group consisting of Ag, Au, Pt and Pd as a main component. The amount of Mo compound or Mo metal is in the range of 0.05 to 10 parts by weight in terms of Mo metal with respect to 100 parts by weight of the conductive material. This multilayer ceramic substrate can achieve sufficient flatness and high dimensional accuracy, while preventing defects that occurs in the vicinity of electrodes after firing.
摘要:
A dielectric porcelain composition of the present invention includes a first component and second component. If the first component is represented by the general formula of xBaO-yNd2O3-zTiO2-wBi2O3 (provided that x+y+z+w=100), x, y, z, and w satisfy 12≦x≦16, 12≦y≦16, 65≦z≦69, and 2≦w≦5, respectively. The second component includes 30 to 37 wt % of BaO, 33 to 46 wt % of SiO2, 8 to 12 wt % of La2O3, 3 to 7 wt % of Al2O3, 0 to 1 wt % of SrO, 0 to 10 wt % of Li2O, 0 to 20 wt % of ZnO, and 7 wt % or less of B203. The compounding ratio of the second component is between 10 wt % and 30 wt % when the sum of the first and second components is 100. In addition, 0.1 to 1 parts by weight of Li2O and 3 to 10 parts by weight of ZnO, relative to 100 parts by weight of the sum of the first and second components, is also contained as a third component. An average particle diameter of the dielectric mixed powder forming dielectric porcelain composition before firing is 0.9 μm or less.
摘要翻译:本发明的电介质瓷组合物包括第一组分和第二组分。 如果第一组分由通式xBaO-yNd2O3-zTiO2-wBi2O3(条件是x + y + z + w = 100)表示,x,y,z和w满足12 <= x <= 16,12 <= y <= 16,65 <= z <= 69,2 <= w <= 5。 第二组分包括30至37重量%的BaO,33至46重量%的SiO 2,8至12重量%的La 2 O 3,3至7重量%的Al 2 O 3,0至1重量%的SrO,0至10重量%的 Li 2 O,0〜20重量%的ZnO和7重量%以下的B 2 O 3。 当第一和第二组分的总和为100时,第二组分的配合比例为10重量%至30重量%。此外,相对于0.1重量份的Li 2 O 3和10重量份的Li 2 O 3和10重量份 至100重量份的第一和第二组分的总和也被包含为第三组分。 烧成前的介电混合粉末形成介电瓷组合物的平均粒径为0.9μm以下。
摘要:
A dielectric ceramics includes a main ingredient, and a supplemental ingredient in an amount of 0.05 to 2 wt % for the main ingredient. The main ingredient is expressed by xBiO3/2-yCaO-zNbO5/2 and is within a scope of a specified quadrilateral region in a ternary system diagram, and the supplemental ingredient is a glass composition including at least SiO2, Li2O and MO (M includes at least one of Ca, Sr and Ba). A ceramic electronic component is produced by co-firing a dielectric layer composed of the dielectric ceramics and a conductive layer mainly composed of silver, and has a low degradation in Q value and excellent microwave characteristics.
摘要:
A piezoelectric element includes a metal substrate, an alumina layer, a lower electrode, a piezoelectric layer, and an upper electrode. The metal substrate includes iron as a main component and includes at least aluminum and chromium. The alumina layer is formed on the metal substrate, and the lower electrode is formed on the alumina layer. The piezoelectric layer is formed on the lower electrode, and the upper electrode is formed on the piezoelectric layer. The alumina layer is mainly formed of particles in a γ-alumina phase.
摘要:
A dielectric ceramic composition including at least a first component containing Al2O3, MgO and ROa (R is at least one element selected from the group consisting of La, Ce, Pr, Nd, Sm, Eu, Tb and Gd; a is a value stoichiometrically determined in accordance with the valence of R); SiO2 as a second component; and a third component containing a glass composition including two or more components containing at least one selected from the group consisting of SiO2 and B2O3. A dielectric ceramic composition stably has a high strength in a high frequency band such as microwave, millimeter wave, etc., and has a small dielectric constant, a low loss, and a small temperature constant at capacitance.
摘要翻译:包含至少含有Al 2 O 3,MgO和ROa的第一成分的电介质陶瓷组合物(R是选自La,Ce,Pr,Nd,Sm,Eu,Tb和Gd中的至少一种元素; a是化学计量的值 按照R的化合价确定); SiO2作为第二组分; 以及含有玻璃组合物的第三成分,所述玻璃组合物含有选自由SiO 2和B 2 O 3组成的组中的至少一种的两种以上成分。 介电陶瓷组合物在微波,毫米波等高频下稳定地具有高强度,并且具有小的介电常数,低的损耗和较小的电容温度常数。
摘要:
It is possible to realize an electrostatic discharge protection component having a very small electrostatic capacity suited to a high-frequency equipment and comprising a ceramic insulating substrate, a varistor unit composed of a varistor layer and an internal electrode, which are sintered and integrated on the ceramic insulating substrate, and at least a pair of external electrodes provided on the varistor unit, the varistor unit being formed with a varistor.
摘要:
An electrostatic discharge protection component of an array type includes ceramic insulating substrate 12; varistor region 10 which is pasted on ceramic insulating substrate 12 and then is sintered integrally with ceramic insulating substrate 12; and at least one ground outer electrode 15A and a plurality of input/output outer electrodes 15B. Varistor region 10 includes at least one ground inner electrode 14A, varistor layer 10C and the plurality of input/output outer electrodes 15B so as to form the plurality of varistors. Ground inner electrode 14A is connected with ground outer electrode 15A. This structure enables the protection component to be extremely thin.
摘要:
An electrostatic discharge protection component of an array type includes ceramic insulating substrate 12; varistor region 10 which is pasted on ceramic insulating substrate 12 and then is sintered integrally with ceramic insulating substrate 12; and at least one ground outer electrode 15A and a plurality of input/output outer electrodes 15B. Varistor region 10 includes at least one ground inner electrode 14A, varistor layer 10C and the plurality of input/output outer electrodes 15B so as to form the plurality of varistors. Ground inner electrode 14A is connected with ground outer electrode 15A. This structure enables the protection component to be extremely thin.