发明授权
- 专利标题: Capacitor and method for manufacturing the same
- 专利标题(中): 电容器及其制造方法
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申请号: US11475891申请日: 2006-06-28
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公开(公告)号: US07233480B2公开(公告)日: 2007-06-19
- 发明人: Kazuhiro Hayashi , Akifumi Tosa , Motohiko Sato , Jun Otsuka , Manabu Sato
- 申请人: Kazuhiro Hayashi , Akifumi Tosa , Motohiko Sato , Jun Otsuka , Manabu Sato
- 申请人地址: JP Aichi
- 专利权人: NGK Spark Plug Co., Ltd.
- 当前专利权人: NGK Spark Plug Co., Ltd.
- 当前专利权人地址: JP Aichi
- 代理机构: Sughrue Mion, PLLC
- 优先权: JP2003-407327 20031205
- 主分类号: H01G4/228
- IPC分类号: H01G4/228
摘要:
A laminated ceramic capacitor (10) divided into a first laminate (11), a second laminate (12), a third laminate (13), and a fourth laminate (14). The first laminate (11) includes a ceramic layer (15) serving as a dielectric layer. The ceramic layer (15) is thicker than a ceramic layer (17) sandwiched between internal electrodes (16a) in the second laminate (12) or the fourth laminate (14), and thinner than 20 times the thickness of the ceramic layer (17). The third laminate (13) includes dielectric layers, which serve as the ceramic layers (17), and has a thickness of 5% of the total thickness of the second laminate (12) and the fourth laminate (14). Accordingly, the third laminate (13) achieves the function of absorbing an electrode-induced thickness differential. Also, by means of regulating the thickness of the first laminate (11), portions of via electrodes (18) that extend without being electrically connected to the internal electrodes (16b) can be shortened.
公开/授权文献
- US20060245142A1 Capacitor and method for manufacturing the same 公开/授权日:2006-11-02
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