High-temperature co-firing ceramic slurry and preparation method thereof

A technology of high-temperature co-fired ceramics and slurry, applied in the field of semiconductor manufacturing, can solve the problems of limited range of resistance temperature coefficient, difficult to meet different requirements of different resistance electronic components, etc., and achieve the effect of less production equipment and simple preparation process

Active Publication Date: 2013-10-23
XIAMEN GREEN WAY ELECTRONICS TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The temperature coefficient of resistance obtained by adding high temperature co-fired ceramic slurry to a single metal co-fired is limited, and it is difficult to meet the different requirements of different resistance electronic components.

Method used

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  • High-temperature co-firing ceramic slurry and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment

[0020] 1) Prepare the ceramic powder A by performing 24-hour dry powder ball milling on the inorganic additives in proportion;

[0021] 2) Dry porcelain powder A, tungsten powder and molybdenum powder in proportion, sieve, and quickly ball mill for 1 hour to obtain mixed powder B;

[0022] 3) Add the organic vehicle to the mixed powder B in proportion, and roll it into a slurry through a three-roll mill.

[0023] The high temperature co-fired ceramic slurry formula and test temperature coefficient of resistance (TCR) are as follows:

[0024]

[0025] Note: The test temperature range of TCR is 25℃-600℃.

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Abstract

The invention relates to a high-temperature co-firing ceramic slurry and a preparation method thereof. The slurry comprises the components of, by weight: 17-61.7% of tungsten powder, 4-48.5% of molybdenum powder, 0-20% of an inorganic additive, and 18% of an organic carrier. The inorganic additive can be one or more selected from alumina, kaolin, talcum powder, silica, and calcium carbonate. The organic carrier can be a plasticizer, a binder, and a dispersing agent. The raw materials with the ratio are mixed with the processed such as drying, sieving, rapid ball milling, and the like; and the mixture is rolled into slurry with a three-roller grinder, such that the high-temperature co-firing ceramic slurry is obtained. According to the invention, slurry resistance temperature coefficient can be adjusted through adjusting the ratios of tungsten and molybdenum in the slurry, such that wide resistance temperature coefficient can be obtained. Therefore, the formula can be regulated according to different requirements of different electronic components, such that an application purpose can be satisfied.

Description

technical field [0001] The invention relates to a high-temperature co-fired ceramic slurry and a preparation method thereof. It belongs to the technical field of semiconductor manufacturing. Background technique [0002] High-temperature co-fired ceramic heating electronic components are mainly used in automotive oxygen sensors, electric soldering irons, instant electric water heaters, etc. Different products have different requirements for high temperature co-fired ceramic heating electronic components. Different car models require different oxygen sensors, and some oxygen sensors require the supporting heating element to have a fast heating rate, so the slurry with low TCR value is required to make the resistance slurry under the condition of ensuring the same starting current; In the case of a stable current, a paste with a high TCR value is required to make a resistance paste. High-power electric soldering irons and instant water heaters have large steady-state power ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C27/04C22C30/00C22C1/05
Inventor 石荣陈碰营赵杰吴宝洲
Owner XIAMEN GREEN WAY ELECTRONICS TECH
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