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Piezoelectric component and method for manufacturing same

A technology of piezoelectric components and piezoelectric vibration elements, applied in the direction of electrical components, impedance networks, etc., to achieve good visual confirmation and reliability

Inactive Publication Date: 2008-04-09
KYOCERA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Therefore, in conventional piezoelectric components, the above-mentioned impact resistance and thinning become fatal problems.

Method used

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  • Piezoelectric component and method for manufacturing same
  • Piezoelectric component and method for manufacturing same
  • Piezoelectric component and method for manufacturing same

Examples

Experimental program
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Effect test

Embodiment Construction

[0047] FIG. 1 is an external perspective view schematically showing a piezoelectric component according to an embodiment of the present invention.

[0048] 2 is a longitudinal sectional view of the piezoelectric component shown in FIG. 1 , and FIG. 3 is an exploded perspective view of the piezoelectric component shown in FIG. 1 .

[0049] 4 is a plan view of a piezoelectric substrate used in the piezoelectric component shown in FIG. 1 , and FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4 .

[0050] FIG. 6 is an equivalent circuit diagram of the piezoelectric component shown in FIG. 1 .

[0051] The structure of the piezoelectric component 1 includes: a piezoelectric vibrating element 10, which has a pair of electrodes 20a, 20b formed on both main surfaces of a piezoelectric substrate 11 so as to face each other through the piezoelectric substrate 11; a pair of frames 30a , 30b, which are arranged on both main surfaces of the piezoelectric substrate 11 so as to...

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Abstract

Disclosed is a piezoelectric component (1) comprising a piezoelectric transducer (10) wherein a pair of electrodes (20a, 20b) are formed on both major surfaces of a piezoelectric substrate (11), a pair of frame members (30a, 30b) fitted to both major surfaces of the piezoelectric transducer (10), a pair of sealing substrates (40a, 40b) composed of a light-transmitting resin material and so fitted as to cover the frame members (30a, 30b), opaque coating layers (50a, 50b) respectively formed on the sealing substrates (40a, 40b), and a pair of input / output terminal electrodes (61a, 61b) respectively connected to the electrodes (20a, 20b). By having such a constitution, the state of sealed space and sealing widths of the frame members (30a, 30b) can be checked by visual examination such as direct visual observation or image recognition, and thus a highly reliable piezoelectric component (1) can be obtained. In addition, a mark can be made on the coating layers (50a, 50b).

Description

technical field [0001] The present invention relates to a piezoelectric component that is easy to manufacture and has excellent reliability, and a method for manufacturing the same. Background technique [0002] Conventionally, microcomputers are used in communication equipment and electronic equipment, and piezoelectric components incorporating piezoelectric vibration elements are widely used as clock sources for such microcomputers. [0003] As such a piezoelectric component, it is known that vibrating electrodes are formed on both main surfaces of a piezoelectric substrate, and a sealed space is formed above each vibrating electrode to ensure a space for the vibrating electrodes to vibrate. [0004] In such a piezoelectric component, if the sealing space is not sufficiently ensured, the sealing substrate or the like may come into contact with the vibrating electrodes. As a result, the vibration of the vibrating electrode is attenuated to degrade the electrical characteri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03H9/02H03H9/17H03H3/02
CPCH03H9/1035H03H9/177H03H9/0561H03H3/02H03H9/02H03H9/17
Inventor 中井泰广
Owner KYOCERA CORP
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