| 摘要 |
A composite multilayer ceramic electronic part includes a high dielectric-constant layer and at least one low dielectric-constant layer laminated with each other, the high dielectric-constant layer including a high dielectric-constant material and has a relative dielectric constant epsir of about 20 or more, and the low dielectric-constant layer including a low dielectric-constant material and has a relative dielectric constant epsir of about 10 or less. The high dielectric-constant material mainly comprises a BaO-TiO2-ReO3/2 dielectric and a first glass composition, the BaO-TiO2-ReO3/2 dielectric being represented by xBaO-yTiO2-zReO3/2, where x, y and z are % by mole and satisfy the following conditions: 8<=x<=18; 52.5<=y<=65; 20<=z<=40; and x+y+z=100; and Re is a rare earth element, and the low dielectric-constant material comprises a composite of a ceramic and a second glass composition. The composite multilayer ceramic electronic part is resistant to delamination or deformation at the interface between the different types of materials, can be fired at low temperatures and is suitable for the high-frequency applications. |
