发明授权
- 专利标题: Thin-film capacitor having a connecting part of a lead conductor disposed within an opening in a protective layer
- 专利标题(中): 薄膜电容器具有设置在保护层的开口内的引线导体的连接部分
-
申请号: US13009395申请日: 2011-01-19
-
公开(公告)号: US08390982B2公开(公告)日: 2013-03-05
- 发明人: Yutaka Takeshima , Masanobu Nomura , Takeshi Inao
- 申请人: Yutaka Takeshima , Masanobu Nomura , Takeshi Inao
- 申请人地址: JP Nagaokakyo-Shi, Kyoto-fu
- 专利权人: Murata Manufacturing Co., Ltd.
- 当前专利权人: Murata Manufacturing Co., Ltd.
- 当前专利权人地址: JP Nagaokakyo-Shi, Kyoto-fu
- 代理机构: Dickstein Shapiro LLP
- 优先权: JP2005-303143 20051018; JP2006-135571 20060515
- 主分类号: H01G4/228
- IPC分类号: H01G4/228 ; H01G4/06
摘要:
A thin-film capacitor and a method for making the thin-film capacitor having a structure that can prevent vertical stress acting on outer connecting terminals, such as bumps, from concentrating on electrode layers, and capable of easily increasing the equivalent series resistance to a desired value. The thin-film capacitor includes a substrate, a capacitor unit disposed above the substrate and composed of at least one dielectric thin film and two electrode layers, a protective layer covering at least part of the capacitor unit, a lead conductor electrically connected to one of the electrode layers of the capacitor unit, and a bump disposed above the lead conductor. The lead conductor includes a connecting part disposed in an opening in the protective layer and electrically connected to one of the electrode layers of the capacitor unit, and a wiring part extending over the protective layer. The bump is disposed above the wiring part.
公开/授权文献
- US20110110016A1 THIN-FILM CAPACITOR 公开/授权日:2011-05-12
信息查询