Preparation method of laminated chip negative temperature coefficient thermistor

A technology of negative temperature coefficient and thermistor, applied in the direction of resistors with negative temperature coefficient, etc., can solve the problem of low precision and achieve the effect of high precision
CN102270531AInactive Publication Date: 2011-12-07XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
Publication Date
2011-12-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a laminated chip type negative temperature coefficient thermistor and a preparation method thereof. The thermistor uses trimanganese tetroxide, tricobalt tetroxide, nickel trioxide and silicon dioxide as raw materials, and the raw material powder is mechanically The negative temperature coefficient thermal fine powder is synthesized by ball milling method, and then the laminated chip negative temperature coefficient thermistor can be obtained by tape casting (ribbon casting), sintering and coating metal electrode technology, and the obtained laminated negative temperature coefficient thermistor The temperature coefficient thermistor is small in size and high in precision. Its material constant B value is 4030-4105, and the allowable deviation of B value is ±1%. KΩ.
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Description

technical field

[0001] The invention relates to a preparation method of a laminated chip type negative temperature coefficient thermistor. Background technique

[0002] At present, negative temperature coefficient (NTC) thermistors are widely used in temperature control, temperature detection, temperature compensation, integrated circuit protection and other occasions, among which chip NTC thermistors can be used for temperature control in the fields of telecommunications, household appliances, automobiles and medical treatment, etc. Control, temperature detection, temperature compensation, integrated circuit protection. In recent years, due to the rapid development of these fields, especially the mobile communication and automobile industries, the requirements for chip NTC thermistors used in these industries, especially as temperature-compensated crystal oscillators, have increased significantly, and because chip NTC thermistors The production of the chip NTC thermistor, ...

Claims

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