High-acid-resistance dielectric paste

A technology of medium slurry and acidic medium, applied in the direction of cellulose material, quartz/glass/glass enamel, organic insulator, etc., to achieve the effect of improving structure, enhancing compactness, and reducing use limitations

Active Publication Date: 2021-10-26
西安宏星电子浆料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The acid resistance of the dielectric slurry determines its promotion speed. There are two reasons: First, the cost problem: the dielectric slurry is used in various electronic devices such as resistors and filters, and most of the substrate area needs to be covered with the dielectric slurry. to achieve insulation

Method used

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Examples

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Effect test

Embodiment 1

[0021] Preparation of glass powder: Precisely mix 1 kg of bismuth oxide 60%, silicon oxide 25%, aluminum oxide 5%, boron dry 6%, and zinc oxide 4% in a polytetrafluoroethylene tank according to the mass percentage, and then seal the polytetrafluoroethylene tank. Vinyl fluoride tank, placed on an eight-roller ball mill for mixing for 1.5 hours; after the mixing is completed, the mixture obtained is put into a 2L quartz crucible, placed in a resistance furnace at 1200°C for 1.5 hours of heat preservation and melting, and the obtained glass solution is water-quenched to obtain glass slag , put the glass slag into a 3L zirconia ball mill jar, add pure water according to the mass ratio of material and water of 1:1, put it on an eight-roller ball mill and grind it until the particle size D50≤1.5μm, then pour it out, and use a 600-mesh screen After sieving, put the sifted liquid into an oven and dry at 120°C for 24 hours to obtain Bi-Si-B glass powder; refill the Bi-Si-B glass powder ...

Embodiment 2

[0025] Preparation of glass powder: Precisely mix 1 kg of bismuth oxide 55%, silicon oxide 30%, aluminum oxide 4%, boron dry 9%, and zinc oxide 2% in a polytetrafluoroethylene tank according to the mass percentage, and then seal the polytetrafluoroethylene tank. The vinyl fluoride tank was placed on an eight-roller ball mill for 1.5 hours of mixing; after the mixing was completed, the resulting mixture was put into a 2L quartz crucible, and placed in a 1100°C resistance furnace for heat preservation and melting for 1 hour, and the obtained glass solution was water-quenched to obtain a glass body. Crush the glass body into glass slag, put the glass slag into a 3L zirconia ball mill jar, add pure water according to the mass ratio of material to water at 1:1, put it on an eight-roller ball mill and grind it until the particle size D50≤1.5μm, pour it out, and Use a 600-mesh sieve to sieve, put the sieved liquid in an oven and dry at 120°C for 24 hours to obtain Bi-Si-B glass powder...

Embodiment 3

[0029] Preparation of glass powder: Precisely mix 1 kg of bismuth oxide 75%, silicon oxide 20%, aluminum oxide 2%, boron dry 2%, and zinc oxide 1% in a polytetrafluoroethylene tank according to the mass percentage, and then seal the polytetrafluoroethylene tank. The vinyl fluoride tank was placed on an eight-roller ball mill for mixing for 2 hours; after the mixing was completed, the resulting mixture was put into a 2L quartz crucible, and placed in a resistance furnace at 1300°C for 1 hour of heat preservation and melting. The obtained glass solution was water-quenched to obtain a glass body. Crush the glass body into glass slag, put the glass slag into a 3L zirconia ball mill jar, add pure water according to the mass ratio of material to water at 1:1, put it on an eight-roller ball mill and grind it until the particle size D50≤1.5μm, pour it out, and Use a 600-mesh sieve to sieve, put the sieved liquid in an oven and dry at 120°C for 24 hours to obtain Bi-Si-B glass powder; r...

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Abstract

The invention discloses dielectric paste with high acid resistance. Glass powder used by the dielectric paste is obtained by tempering Bi-Si-B series glass powder for 20-24 hours at the temperature of 500-600 DEG C; preparing an organic carrier by using lecithin, butyraldoxime, beta-cellulose and the like; and adding chromium sesquioxide, cadmium sesquioxide, titanium dioxide and the like as oxide additives to further enhance the stability of the slurry. High-temperature tempering is added to the binding phase glass powder used by the dielectric paste on the basis of a traditional water quenching process, internal stress generated in the smelting and ball milling processes can be eliminated, and the compactness is further improved; meanwhile, terpilenol is replaced by butyraldoxime in the preparation process of the organic carrier, so the prepared slurry has extremely high acid resistance, can ensure stable breakdown voltage and lower encapsulation change rate, can adapt to a more severe use environment, prolongs the service life, and has obvious economic benefits.

Description

technical field [0001] The invention belongs to the technical field of medium slurry, and in particular relates to a medium slurry with high acid resistance. Background technique [0002] For a long time, the acid resistance of the dielectric paste has determined the service life of the substrate after printing and the limitations of the use environment. The existing dielectric paste on the market will be soaked in 5% dilute sulfuric acid after printing, and the surface layer will appear to varying degrees. Shedding phenomenon, lower service life and greater uncertainty. The acid resistance of the dielectric slurry determines its promotion speed. There are two reasons: First, the cost problem: the dielectric slurry is used in various electronic devices such as resistors and filters, and most of the substrate area needs to be covered with the dielectric slurry. In order to achieve the insulation effect. It is urgent to find a kind of dielectric slurry, which can greatly imp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B3/08H01B3/18C03C12/00
CPCH01B3/087H01B3/085H01B3/185H01B3/18C03C12/00
Inventor 周碧赵科良张豪刘姚王要东雷莉君边甄勇艾志远
Owner 西安宏星电子浆料科技股份有限公司
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