发明授权
- 专利标题: Chip-type piezoelectric component
- 专利标题(中): 片式压电元件
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申请号: US09643143申请日: 2000-08-21
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公开(公告)号: US06531806B1公开(公告)日: 2003-03-11
- 发明人: Muneyuki Daidai
- 申请人: Muneyuki Daidai
- 优先权: JP11-234844 19990823
- 主分类号: H01L4108
- IPC分类号: H01L4108
摘要:
A chip-type piezoelectric component has greatly increased bond strength of external electrodes while allowing the external electrodes to be easily formed. The external electrodes including a conductive paste are continuously formed on the side surface of a laminated body in which a piezoelectric element is laminated with seal substrates in addition to embedding a part of the external electrodes in recesses in which terminal electrodes of the piezoelectric element have been exposed. A metal plating layer having good solder wettability is provided on the outermost layer of the external electrode. The bonding strength between the external electrode and the laminated body is greatly improved by the wedge effect of the conductive paste penetrated in the recess, thereby preventing the electrode from peeling. The electrical continuity between the terminal electrode and the external electrode of the piezoelectric element is greatly improved because a portion of the external electrode is embedded in the recess in which the terminal electrode of the piezoelectric element is exposed.
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