会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 119. 发明授权
    • Multilayer ceramic capacitor
    • 多层陶瓷电容器
    • US06987662B2
    • 2006-01-17
    • US11043267
    • 2005-01-27
    • Takako HibiKazunori NoguchiMari MiyauchiAkira Sato
    • Takako HibiKazunori NoguchiMari MiyauchiAkira Sato
    • H01G4/20H01G4/06
    • H01G4/30H01G4/12
    • A multilayer ceramic capacitor 1 having internal electrode layers 3, internal dielectric layers 2 having the thickness of less than 2 μm, and external dielectric layers 20 wherein; the internal dielectric layers 2 and the external dielectric layers 20 include a plural number of dielectric particles 2a, 20a, and when y1 is ratio(D50a/D50b) of D50a and D50b where D50a is an average particle size of dielectric particles 2a included in the internal dielectric layers 2 and D50b is an average particle size of dielectric particles 20a included in the external dielectric layer 20 and located at least 5 μm away from an internal electrode layer 3a, arranged outermost part of all the internal electrode layers, to the stacked direction, and x is thickness of the internal dielectric layer 2, y1 and x satisfy the following equations, y1≦−0.75x+2.275 and y1≧−0.75x+1.675. According to the present invention, even when thickness of internal dielectric layers 2 were made thinner, a multilayer ceramic capacitor 1 wherein improvements in all kinds of electric characteristics, specially an improvement in TC bias characteristic while having sufficient dielectric constant can be expected.
    • 具有内部电极层3,厚度小于2μm的内部电介质层2和外部电介质层20的多层陶瓷电容器1,其中: 内部电介质层2和外部电介质层20包括多个电介质粒子2a,20a,当y1为D50a和D50b的比率(D50a / D50b)时,D50 a是包含在内部电介质层2中的电介质粒子2a的平均粒径,D50b是包含在外部电介质层20中并且位于离内部电极至少5m的电介质粒子20a的平均粒径 层3a,所有内部电极层的最外面的部分为堆叠方向,x为内部电介质层2的厚度,y 1和x满足下列等式:y 1 <= - 0.75×+ 2.275和y 1> = - 0.75x + 1.675。 根据本发明,即使使内部电介质层2的厚度变薄,也可以期望具有各种电特性的改善的多层陶瓷电容器1,特别是具有足够介电常数的TC偏置特性的改善。