Magnetoelectric composite structure and fabrication method thereof

A manufacturing method and magnetoelectric composite technology, which are applied in the manufacture/assembly of magnetostrictive devices, the manufacture/assembly of piezoelectric/electrostrictive devices, circuits, etc., can solve the problem of poor stress conduction and signal-to-noise ratio. Unsatisfactory, poor flat uniformity, etc., to achieve good bonding, common mode noise suppression, and prevention of short-circuit leakage

Inactive Publication Date: 2015-12-09
AAC TECH NANJING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Although the magnetoelectric composite structure of this structure has a large enough magnetoelectric output signal, the noise of the material is also very large, so the signal-to-noise ratio is not ideal; and epoxy resin is used as the isolation layer, which has poor flatness and uniformity, and the stress Poor conduction

Method used

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  • Magnetoelectric composite structure and fabrication method thereof
  • Magnetoelectric composite structure and fabrication method thereof
  • Magnetoelectric composite structure and fabrication method thereof

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Embodiment Construction

[0043] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0044] like figure 1 Shown is the magnetoelectric composite structure 1 of the present invention, which includes a piezoelectric ceramic sheet 10, a silver electrode placed on the piezoelectric ceramic sheet 10, a magnetostrictive material layer 60, and a piezoelectric ceramic sheet 10 and a magnetostrictive The stretchable material layer 60 is used to isolate the piezoelectric ceramic sheet 10 from the ink layer 50 of the magnetostrictive material layer 60 . Wherein, the silver electrodes include a first silver electrode located above the piezoelectric ceramic sheet 10 and a second silver electrode located below the piezoelectric ceramic sheet 10, and the ink layer 50 includes a first ink layer located above the first silver electrode. 51 and the second ink layer 52 below the second silver electrode, the magnetostrictive material layer 60 includes the...

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Abstract

The invention provides a magnetoelectric composite structure. The magnetoelectric composite structure includes a piezoelectric ceramic slice, a silver electrode placed on the piezoelectric ceramic slice, a magnetostrictive material layer and an ink layer placed between the piezoelectric ceramic slice and the magnetostrictive material layer and used for isolating the piezoelectric ceramic slice from the magnetostrictive material layer. The magnetoelectric composite structure can improve the magnetoelectric output signal-to-noise ratio.

Description

【Technical field】 [0001] The invention relates to a magnetoelectric structure, in particular to a magnetoelectric composite structure and a manufacturing method thereof. 【Background technique】 [0002] Magnetoelectric materials have the function of converting magnetic energy into electrical energy, that is, they generate dielectric polarization under the action of an external magnetic field or generate magnetization under the action of an external electric field. The preparation of magnetoelectric materials into magnetoelectric functional devices can be applied to magnetic and electric field sensing, magnetoelectric information storage, current detection, microwave leakage and other technical fields. Therefore, the development of magnetoelectric materials and devices with large magnetoelectric effects has attracted people's attention. Among them, the layered magnetoelectric composite material that combines piezoelectric materials and magnetostrictive materials through layer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L25/18H01L41/047H01L41/02H01L41/25H01L41/47H01L41/29
Inventor 李杨
Owner AAC TECH NANJING
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