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Vibration ceramic resonance of independent flake thickness-changing and its production

A ceramic resonator, shear vibration technology, applied in the direction of electrical components, impedance networks, etc., can solve the problems of high manufacturing cost, poor contact, low efficiency, etc., to avoid instability and thermal shock caused by instability, improve Reliability and cost reduction effects

Inactive Publication Date: 2007-11-21
上海晶赛电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The piezoelectric ceramic vibrator is glued to the ceramic base with conductive adhesive. When subjected to mechanical vibration or thermal shock, the piezoelectric ceramic vibrator is prone to fall off, causing the machine to fail
[0005] 2. The ceramic base and ceramic cap are deformed during sintering, so it is easy to cause poor air tightness during bonding
[0006] 3. The electrode lead-out method is adopted: after the piezoelectric ceramic vibrator electrode is connected to the internal electrode through conductive glue, the conductive paste is used to realize the connection of the internal and external electrodes through perforation printing. The process is relatively complicated, and it is easy to cause poor contact and lead to lead Unreliable
If assembled by hand, the positioning accuracy is poor and the efficiency is low, and the defect rate is high; if a special automatic machine is used, the price is expensive and the manufacturing cost is high

Method used

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  • Vibration ceramic resonance of independent flake thickness-changing and its production
  • Vibration ceramic resonance of independent flake thickness-changing and its production
  • Vibration ceramic resonance of independent flake thickness-changing and its production

Examples

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Embodiment Construction

[0029] Please refer to Figures 2 to 6, it can be seen from the figures that a monolithic chip thickness shear vibration ceramic resonator includes a cover plate 1, a middle splint 2, a bottom plate 3, a piezoelectric ceramic vibrator 4, and multiple cover plates The pits 5 , the bottom plate pits 6 , and the number of the cover plate 1 and the bottom plate 3 correspond to the number of holes 7 in the intermediate splint, the piezoelectric ceramic vibrator electrodes 8 and the external electrodes 9 . The cover plate 1, the middle splint 2, and the bottom plate 3 are bonded together, and the cover plate pits 5, the bottom plate pits 6 and the middle splint holes 7 form a plurality of cavities of the resonator, each of which is 24 in the figure indivual. Among them, the holes in the middle splint 7 or the adjacent holes are connected in the length direction by through holes or channels smaller than the width of the holes. The piezoelectric ceramic vibrator 4 is located in the hol...

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PUM

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Abstract

The ceramic resonator comprises: a cover plate, an intermediate splint, a backboard and a piezoelectric ceramic. The manufacturing method comprises: 1) according to the requirement of product, making the cover plate, backboard and intermediate plate; 2) after binding the cover plate with the intermediate splint on the worktable by using dedicated sticking, the piezoelectric ceramic vibrator is placed in the hole of the intermediate splint, then it is putted on the dedicated sticking worktable to bind with the backboard; after heating, forming a laminate sheet; 3) according to the size requirement of the product, the laminate sheet is cut into the product units; 4) the product units are putted into the dedicated evaporation clamper to make evaporation of end-face electrode in order to make the electrode of piezoelectric ceramic on-state to the external electrode.

Description

technical field [0001] The invention relates to a structural form of a piezoelectric ceramic frequency device and a manufacturing method thereof, in particular to a structural form of a monolithic slice-type thickness-shear vibration ceramic resonator and a manufacturing method thereof. Background technique [0002] Piezoelectric ceramic resonator is an electronic component used to generate time base oscillation frequency or frequency selection. At present, piezoelectric ceramic resonators are widely used in the fields of communication, television, digital products and industrial automation. Piezoelectric ceramic resonators are made using the principle that piezoelectric ceramics will generate mechanical vibrations under the action of an alternating electric field. Therefore, it is not affected by external electromagnetic interference. In use, there is no need for complex shielding to prevent electromagnetic interference like other frequency components. It has quite posit...

Claims

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Application Information

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IPC IPC(8): H03H9/15H03H9/02
Inventor 姚一滨
Owner 上海晶赛电子有限公司
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