Invention Grant
- Patent Title: Methods for manufacturing piezoelectric devices
- Patent Title (中): 制造压电元件的方法
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Application No.: US12761342Application Date: 2010-04-15
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Publication No.: US08689415B2Publication Date: 2014-04-08
- Inventor: Kozo Ono , Takahiro Inoue
- Applicant: Kozo Ono , Takahiro Inoue
- Applicant Address: JP Tokyo
- Assignee: Nihon Dempa Kogyo Co., Ltd.
- Current Assignee: Nihon Dempa Kogyo Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Klarquist Sparkman, LLP
- Priority: JP2007-267445 20071015
- Main IPC: H04R17/00
- IPC: H04R17/00 ; H01L41/277 ; H01L41/04 ; H01L41/047 ; H01L41/053 ; H01L41/083 ; H01L41/23 ; H01L41/25 ; H01L41/293 ; H01L41/297 ; H03H3/02 ; H03H9/17

Abstract:
In an exemplary method for manufacturing a piezoelectric device, a lid wafer, a piezoelectric wafer, and a base wafer are prepared. Each wafer defines multiple lids, multiple piezoelectric vibrating pieces, and multiple bases, respectively. The piezoelectric vibrating pieces comprise respective first and second electrodes, and the base wafer is made of glass. The bases comprise respective first and second metal wires extending therethrough, each wire having a respective end and a respective side surface at the end that protrudes at least partially from the first surface. A wafer sandwich is formed with the three wafers co-aligned with each other, with the protruding ends of the wires contacting respective first and second electrodes. The layers are anodic bonded together, which also bonds the protruding ends of the first and second wires to the respective first and second electrodes. The bonded wafer sandwich is cut into separate individual piezoelectric devices thus formed in the sandwich from each other.
Public/Granted literature
- US20100192342A1 PIEZOELECTRIC DEVICES AND METHODS FOR MANUFACTURING SAME Public/Granted day:2010-08-05
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