
基本信息:
- 专利标题: STACKED PTC THERMISTOR AND PROCESS FOR ITS PRODUCTION
- 专利标题(中):堆叠PTC热敏电阻及其生产工艺
- 申请号:US12136924 申请日:2008-06-11
- 公开(公告)号:US20080309448A1 公开(公告)日:2008-12-18
- 发明人: Kazuhiko ITOH , Akira Kakinuma , Atsushi Hitomi
- 申请人: Kazuhiko ITOH , Akira Kakinuma , Atsushi Hitomi
- 申请人地址: JP Tokyo
- 专利权人: TDK Corporation
- 当前专利权人: TDK Corporation
- 当前专利权人地址: JP Tokyo
- 优先权: JPP2007-155397 20070612; JPP2008-063104 20080312
- 主分类号: H01C7/10
- IPC分类号: H01C7/10
摘要:
A stacked PTC thermistor 1 comprises a body 4 obtained by alternating lamination of a semiconductor ceramic layer 2 and an internal electrode 3, and a pair of external electrodes 5a, 5b provided at the edge faces 4a, 4b of the body 4 and electrically connected with the internal electrode 3. The semiconductor ceramic layer 2 is composed of a porous sintered compact containing crystal grains of a barium titanate-based compound, and an alkali metal element is preferentially distributed in at least one of the grain boundaries and voids of the sintered compact.
摘要(中):
堆叠的PTC热敏电阻1包括通过交替层叠半导体陶瓷层2和内部电极3而获得的主体4,以及设置在主体4的边缘面4a,4b处的一对外部电极5a,5b,并且电连接 内部电极3.半导体陶瓷层2由含有钛酸钡类化合物的晶粒的多孔烧结体构成,碱金属元素优选分布在烧结体的晶界和空隙中的至少一个中 。
公开/授权文献:
- US07944337B2 Stacked PTC thermistor and process for its production 公开/授权日:2011-05-17
IPC结构图谱:
H | 电学 |
--H01 | 基本电气元件 |
----H01C | 电阻器 |
------H01C7/00 | 用一层或多层薄膜或涂敷膜构成的不可调电阻器;由含或不包含绝缘材料的粉末导电材料或粉末半导体材料构成的不可调电阻器 |
--------H01C7/10 | .电压响应的,即压敏电阻器 |