Production method of novel piezoelectric ceramic sensor

A manufacturing method and technology of piezoelectric ceramics, applied in the direction of sensors, piezoelectric/electrostrictive/magnetostrictive devices, circuits, etc., can solve problems such as troublesome operation and difficult realization, and achieve strong practicability, high capacity, and electric The unique effect of sexual connection structure design

Active Publication Date: 2009-02-18
AAC MICROTECH CHANGZHOU +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But if for multilayer ceramic sheet (for example three or more than three sheets), then need multilayer substrate, and each electrode that is applied to each ceramic sheet all extends to the end of substrate to realize to be connected with external circuit, This operation is very cumbersome and difficult to implement

Method used

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  • Production method of novel piezoelectric ceramic sensor
  • Production method of novel piezoelectric ceramic sensor
  • Production method of novel piezoelectric ceramic sensor

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] The manufacturing method of the piezoelectric ceramic sensor according to the embodiment of the present invention, the steps of the manufacturing method include:

[0022] a. Provide a quantity of 8 layers of ceramic sheets, the 8 layers of ceramic sheets include the first layer of ceramic sheets to the eighth layer of ceramic sheets, and each ceramic sheet includes a front surface and a reverse surface;

[0023] b. Use silver glue to print a layer of electrodes on the front surface of the first ceramic sheet, then superimpose another ceramic sheet on the front surface of the ceramic sheet, and then repeat the above-mentioned process of printing electrodes and superimposing ceramic sheets, in this order Cycle until the eighth layer of ceramic sheets is stacked and electrodes are also printed on the front surface. When printing electrodes, an inwar...

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Abstract

This invention provides a manufacturing method of piezoelectric ceramic sensor. Each layer of electrode of the new piezoelectric ceramic sensor obtained by this invention has an interlay electric connection with each other by a through hole of a ceramic sheet between them and non-conductive area. Compare with the current technology, the electric connection structure of the electrode of the piezoelectric ceramic sensor manufactured by this invention is specially designed and has strong practicability, and the effective vibration area of the ceramic sheet is improved and the volume is high; and the acoustical property is improved.

Description

technical field [0001] The invention relates to a piezoelectric ceramic sensor and a manufacturing method thereof, in particular to an electrode structure of the piezoelectric ceramic sensor and a manufacturing method thereof. Background technique [0002] The ceramic sheet has an inverse piezoelectric effect, that is, mechanical deformation occurs under the action of an external electric field. Taking advantage of this feature, ceramic sheets can be used to make piezoelectric sensors, such as piezoelectric speakers, piezoelectric vibrators, and so on. [0003] Piezoelectric ceramic sensors with relatively simple structures, such as image 3 Shown, comprise substrate 41, two ceramic sheets (42a, 42b), on the upper and lower surfaces of substrate 41, are printed with the silver glue electrode 410 that is applied to the electric field of two ceramic sheets, two ceramic sheets are bonded on substrate completely on the upper and lower surfaces. Each electrode extends to the en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L41/24H04R31/00B06B1/06H01L41/293
Inventor 阮学政
Owner AAC MICROTECH CHANGZHOU
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