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A self-promoting burning type electronic paste and preparation method thereof

A technology of electronic paste and paste, which is applied in the manufacture of cables/conductors, conductive materials dispersed in non-conductive inorganic materials, circuits, etc., can solve problems such as residual resin, performance defects, and unstable product performance, and achieve reduction Carbon content, effect of improving performance stability

Active Publication Date: 2019-01-01
DONGGUAN COREHELM ELECTRONICS MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] It should be further pointed out that there are various circuit paste products in the prior art; however, a common problem with sintered pastes, especially medium and low temperature pastes, is that after the paste is fired into a film, there will be residual unburned carbon in the resin, This leads to unstable performance of the sintered product, and there are many performance defects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026]Embodiment 1, a self-promoting sintering type electronic paste, including the following materials by weight, specifically:

[0027] Solid phase 60%

[0028] Organic binder phase 40%.

[0029] Wherein, solid phase is made up of silver powder, palladium powder, glass powder, potassium permanganate, and the weight portion of silver powder, palladium powder, glass powder, potassium permanganate in solid phase is successively 50%, 25%, 15%, 10% .

[0030] The weight portion of the glass powder in this slurry is 9%, contains SiO in the glass powder 2 、 Bi 2 o 3 , B 2 o 3 , ZnO, SnO 2 , CuO, BaO, TeO 2 , SiO in glass powder 2 、 Bi 2 o 3 , B 2 o 3 , ZnO, SnO 2 , CuO, BaO, TeO 2 The parts by weight are 20%, 45%, 10%, 5%, 5%, 5%, 5%, 10% in turn.

[0031] In addition, the weight portion of the organic binding phase in the slurry is 40%, and the organic binding phase includes resin, solvent, and auxiliary agent; wherein, the resin is ethyl cellulose, the solvent is ...

Embodiment 2

[0045] Embodiment 2, a self-promoting sintering type electronic paste, including the following materials by weight, specifically:

[0046] Solid phase 65%

[0047] Organic binder phase 35%.

[0048] Wherein, solid phase is made up of silver powder, palladium powder, glass powder, potassium permanganate, and the weight parts of silver powder, ruthenium oxide powder, glass powder, potassium permanganate in solid phase are successively 25%, 50%, 20%, 5%. %.

[0049] The weight portion of the glass powder in this slurry is 13%, contains SiO2 in the glass powder 2 、 Bi 2 o 3 , B 2 o 3 , ZnO, SnO 2 , CuO, BaO, TeO 2 , SiO in glass powder 2 、 Bi 2 o 3 , B 2 o 3 , ZnO, SnO 2 , CuO, BaO, TeO 2 The parts by weight are 15%, 47%, 10%, 5%, 5%, 5%, 5%, 13%.

[0050] In addition, the weight portion of the organic binding phase in the slurry is 35%, and the organic binding phase includes resin, solvent, and auxiliary agent; wherein, the resin is ethyl cellulose, the solvent is...

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Abstract

The invention discloses self-promoted combustion type electronic paste and a preparation method thereof. The self-promoted combustion type electronic paste comprises a solid phase and an organic binding phase, wherein the solid phase comprises metal powder, a metal oxide, glass powder and a thermal decomposition oxidization agent, and the organic binding phase comprises resin, a solvent and an additive. The preparation method comprises the steps of (a) preparing the glass powder; (b) preparing the organic binding phase; and (c) preparing the paste. By material combination and a corresponding preparation method, the prepared paste has the following advantages that: 1, the thermal decomposition oxidization agent is added into the paste, the resin in the paste can be oxidized by the oxidization agent during the paste sintering process, the carbon content in a sintered film is reduced, and the performance stability of the paste after formation is improved; 2, K2O generated after decomposition of the thermal decomposition oxidization agent in the paste melts into the glass powder, and the glass property such as thermal expansion and dielectricity can be adjusted so that the demands of different substrates are satisfied; and 3, MnO2 is generated after the decomposition of the thermal decomposition oxidization agent in the paste, and the square resistance of the paste can be flexibly adjusted according to special demands.

Description

technical field [0001] The invention relates to the technical field of electronic materials, in particular to a self-burning electronic paste and a preparation method thereof. Background technique [0002] Circuit paste is the basic material for the manufacture of thick film components. It is a paste made of solid powder and organic solvents that are uniformly mixed by three-roll rolling (reminiscent of toothpaste, paint, etc.); among them, according to different uses, Circuit paste can be divided into dielectric paste, resistance paste and conductor paste: according to different substrate types, circuit paste can be divided into ceramic substrate, polymer substrate, glass substrate, metal insulating substrate circuit According to different sintering temperatures, circuit paste can be divided into high temperature, medium and low temperature drying circuit paste; according to different uses, circuit paste can be divided into general circuit paste (making general thick film ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/16H01B1/22H01B13/00
CPCH01B1/16H01B1/22H01B13/00
Inventor 蒋国辉苏冠贤
Owner DONGGUAN COREHELM ELECTRONICS MATERIAL TECH CO LTD
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