超薄介质大容量镍电极MLCC用陶瓷材料的研制  

Development of Ceramic Material for Ultra-thin Dielectric and Big Capacitance Ni-MLCC

作　　者：宋永生 任海东 付振晓 曹秀华 

机构地区：[1]广东风华高新科技股份有限公司,广东肇庆526020

出　　处：《电子工艺技术》2008年第2期95-97,共3页Electronics Process Technology

基　　金：国家技术创新计划项目(项目编号:02CJ-12-08-32)

摘　　要：通过水热法获得均匀、超细、高分散水热法钛酸钡(BT)主体材料,并引入掺杂改性剂Dy3+、Nb5+,抑制晶粒生长,解决因介质做薄而导致MLCC绝缘电阻下降和老化性能急剧变差等关键问题,最终获得满足X7R特性电子陶瓷材料,并可用于制作介质厚度小于5μm的超薄介质大容量镍电极多层片式陶瓷电容器。In order to solve the key problems of MLCC insulation resistor decrease and age properties worse caused by the thin dielectric layer,the hydrothermal synthesis is adopted to get the homogeneous,ultra fine,high dispersing hydrothermal synthesis BaTiO3-the base material,then dopant modifier is added to control the grain growth,finally the electronic ceramic material which can meet X7R properties is developed.This ceramic powder can be used to manufacture big capacitor Ni-MLCC with dielectric thickness less than 5 μm.

关 键 词：水热法钛酸钡 X7R特性 超薄介质MLCC 

分 类 号：TN604[电子电信—电路与系统]